Period
|
First discovered
|
Discoverer
|
Year of discovery
|
|
Smallest known
|
Minimum # of cells
|
2
|
blinker
|
John Conway
|
1970
|
blinker
|
3
|
3
|
pulsar
|
John Conway
|
1970
|
caterer
|
12
|
4
|
pinwheel
|
Simon Norton
|
1970
|
mold
|
12
|
5
|
octagon 2
|
Sol Goodman, Arthur Taber
|
1971
|
pseudo-barberpole
|
15
|
6
|
$rats
|
David Buckingham
|
1972
|
unix
|
16
|
7
|
burloaferimeter
|
David Buckingham
|
1972
|
burloaferimeter
|
28
|
8
|
figure eight
|
Simon Norton
|
1970
|
figure eight
|
12
|
9
|
worker bee
|
David Buckingham
|
1972
|
29P9
|
29
|
10
|
42P10.3
|
David Buckingham
|
≤1976
|
24P10
|
24
|
11
|
38P11.1
|
David Buckingham
|
1977
|
rattlesnake
|
33
|
12
|
dinner table
|
Robert Wainwright
|
1972
|
dinner table
|
33
|
13
|
Buckingham's p13
|
David Buckingham
|
1976
|
Beluchenko's p13
|
34
|
14
|
tumbler
|
George Collins
|
1970
|
tumbler
|
16
|
15
|
pentadecathlon
|
John Conway
|
1970
|
pentadecathlon
|
12
|
16
|
two pre-L hasslers
|
Robert Wainwright
|
1983
|
Rob's p16
|
21
|
17
|
54P17.1
|
Dean Hickerson
|
1997
|
honey thieves
|
36
|
18
|
117P18
|
David Buckingham
|
≤1991
|
p18 bi-block hassler
|
43
|
19
|
Cribbage
|
Mitchell Riley
|
2023
|
Cribbage
|
92
|
20
|
145P20
|
Noam Elkies
|
1995
|
34P20
|
34
|
21
|
124P21
|
Robert Wainwright
|
1995
|
32P21
|
32
|
22
|
168P22.1
|
Noam Elkies
|
1997
|
Jason's p22
|
36
|
23
|
David Hilbert
|
Luka Okanishi, praosylen
|
2019
|
54P23
|
54
|
24
|
186P24
|
Bill Gosper
|
1994
|
p24 shuttle
|
38
|
25
|
134P25
|
Noam Elkies
|
1994
|
30P25
|
30
|
26
|
p26 pre-pulsar shuttle
|
David Buckingham
|
1983
|
p26 honey farm hassler
|
60
|
27
|
123P27.1
|
Noam Elkies
|
2002
|
56P27
|
56
|
28
|
newshuttle
|
David Buckingham
|
1973
|
p28 pre-pulsar shuttle
|
53
|
29
|
p29 pre-pulsar shuttle
|
David Buckingham
|
1980
|
p29 pre-pulsar shuttle
|
54
|
30
|
queen bee shuttle
|
Bill Gosper
|
1970
|
queen bee shuttle
|
20
|
31
|
Merzenich's p31
|
Matthias Merzenich
|
2010
|
Merzenich's p31
|
48
|
32
|
gourmet
|
David Buckingham
|
1978
|
p32 honey farm hassler
|
45
|
33
|
Jason's p33
|
Jason Summers
|
2000
|
Jason's p33
|
60
|
34
|
74P34
|
Mitchell Riley
|
2022
|
74P34
|
74
|
35
|
p35 beehive hassler
|
Dean Hickerson
|
1995
|
p35 honey farm hassler
|
44
|
36
|
p36 toad hassler
|
Robert Wainwright
|
1984
|
22P36
|
22
|
37
|
Beluchenko's p37
|
Nicolay Beluchenko
|
2009
|
58P37
|
58
|
38
|
44P38
|
David Raucci
|
2022
|
42P38
|
42
|
39
|
p39 pi-heptomino hassler
|
goldenratio, iNoMed
|
2022
|
p39 pi-heptomino hassler
|
77
|
40
|
p40 B-heptomino shuttle
|
David Buckingham
|
1991
|
Beluchenko's p40
|
26
|
41
|
208P41
|
Nico Brown
|
2023
|
p41 pi-heptomino hassler
|
170
|
42
|
?
|
?
|
?
|
p42 R-pentomino hassler
|
66
|
43
|
Capped period-43 glider gun
|
Nico Brown
|
2022
|
p43 pi-heptomino hassler
|
70
|
44
|
p44 pi-heptomino hassler
|
David Buckingham
|
1992
|
52P44
|
52
|
45
|
Capped period-45 glider gun
|
Matthias Merzenich
|
2010
|
p45 pi-heptomino hassler
|
29
|
46
|
twin bees shuttle
|
Bill Gosper
|
1971
|
twin bees shuttle
|
28
|
47
|
p47 pre-pulsar shuttle
|
David Buckingham
|
1982
|
p47 pre-pulsar shuttle
|
84
|
48
|
p48 toad hassler
|
Bill Gosper
|
1994
|
p48 R-pentomino hassler
|
45
|
49
|
p49 bouncer loop
|
Noam Elkies
|
1999
|
p49 pi-heptomino hassler
|
98
|
50
|
p50 traffic jam
|
Noam Elkies
|
1994
|
p50 pi-heptomino hassler
|
60
|
51
|
Beluchenko's p51
|
Nicolay Beluchenko
|
2009
|
capped p51 gun
|
84
|
52
|
Four eaters hassling lumps of muck
|
David Buckingham
|
1977
|
four eaters hassling lumps of muck
|
35
|
53
|
94P53
|
Mitchell Riley
|
2023
|
94P53
|
94
|
54
|
p54 shuttle
|
David Buckingham
|
1973
|
43P54
|
43
|
55
|
p55 pre-pulsar hassler
|
David Buckingham
|
1986
|
p55 traffic light hassler
|
84
|
56
|
p56 B-heptomino shuttle
|
David Buckingham
|
≤1991
|
p56 B-heptomino shuttle
|
45
|
57
|
Capped period-57 glider gun
|
David Raucci
|
2021
|
112P57
|
112
|
58
|
p58 toadsucker
|
Bill Gosper
|
1994
|
p58 pi-heptomino hassler
|
54
|
59
|
108P59
|
Mitchell Riley
|
2022
|
p59 pi-heptomino hassler
|
86
|
60
|
?
|
?
|
?
|
two queen bee shuttles hassling blinker
|
33
|
61
|
p61 pi-heptomino hassler
|
Mitchell Riley
|
2022
|
p61 pi-heptomino hassler
|
134
|
62
|
110P62
|
Noam Elkies
|
2010
|
66P62
|
66
|
63
|
p63 skewed pulsar hassler
|
David Raucci
|
2021
|
p63 century hassler
|
124
|
64
|
Merzenich's p64
|
Matthias Merzenich
|
2010
|
Merzenich's p64
|
34
|
65
|
p65 pre-pulsar shuttle
|
David Raucci
|
2021
|
p65 honey farm hassler
|
138
|
66
|
p66 R-pentomino hassler
|
David Raucci
|
2021
|
p66 lumps of muck hassler
|
102
|
67
|
p67 B-heptomino hassler
|
Nico Brown
|
2023
|
p67 B-heptomino hassler
|
236
|
68
|
p68 lumps of muck hassler
|
Mitchell Riley
|
2022
|
p68 century hassler
|
38
|
69
|
?
|
?
|
?
|
p69 honey farm hassler
|
184
|
70
|
?
|
?
|
?
|
p70 honey farm hassler
|
74
|
71
|
p71 honey farm hassler
|
Mitchell Riley
|
2022
|
p71 glider shuttle
|
92
|
72
|
two blockers hassling R-pentomino
|
Robert Wainwright
|
1990
|
two blockers hassling R-pentomino
|
47
|
73
|
p73 lumps of muck hassler
|
Luke Kiernan
|
2022
|
p73 lumps of muck hassler
|
68
|
74
|
p74 honey farm hassler
|
David Raucci
|
2021
|
Raucci's p74
|
84
|
75
|
6 bits
|
Robert Wainwright
|
1984
|
p75 R-pentomino hassler
|
64
|
76
|
p76 pi-heptomino hassler
|
David Raucci
|
2021
|
p76 pi-heptomino shuttle
|
52
|
77
|
?
|
?
|
?
|
p77 pi-heptomino hassler
|
78
|
78
|
p78 pi-heptomino hassler
|
Carson Cheng
|
2023
|
p78 R-pentomino hassler
|
132
|
79
|
p79 pi-heptomino hassler
|
Luke Kiernan
|
2022
|
p79 pi-heptomino hassler
|
82
|
80
|
?
|
?
|
?
|
two Beluchenko's p40s hassling blinker
|
59
|
81
|
p81 pi-heptomino hassler
|
iNoMed
|
2023
|
p81 pi-heptomino hassler
|
550
|
82
|
p82 pi-heptomino hassler
|
Entity Valkyrie
|
2022
|
p82 lumps of muck hassler
|
48
|
83
|
62P83
|
Mitchell Riley
|
2022
|
62P83
|
62
|
84
|
52P84
|
Jason Summers
|
2007
|
p84 honey farm hassler
|
42
|
85
|
p85 R-pentomino hassler
|
Luke Kiernan
|
2022
|
p85 R-pentomino hassler
|
68
|
86
|
p86 pi-heptomino hassler
|
Mitchell Riley
|
2022
|
76P86
|
76
|
87
|
?
|
?
|
?
|
84P87
|
84
|
88
|
Period-doubled p44 pi-heptomino hassler
|
Dean Hickerson
|
1994
|
49P88
|
49
|
89
|
?
|
?
|
?
|
?
|
?
|
90
|
?
|
?
|
?
|
diuresis
|
66
|
91
|
p91 R-pentomino hassler
|
carsoncheng
|
2022
|
p91 R-pentomino hassler
|
84
|
92
|
Capped period-92 glider gun
|
Dean Hickerson
|
1991
|
50P92.1
|
50
|
93
|
p93 R-pentomino hassler
|
iNoMed
|
2023
|
p93 R-pentomino hassler
|
152
|
94
|
capped AK-47 gun
|
Dean Hickerson
|
1990
|
54P94
|
54
|
95
|
p95 pi-heptomino hassler
|
Mitchell Riley
|
2022
|
p95 pi-heptomino hassler
|
218
|
96
|
p96 Hans Leo hassler
|
Noam Elkies
|
1995
|
boat-bit capped period-48 glider gun
|
59
|
97
|
p97 honey farm hassler
|
Nico Brown
|
2023
|
p97 honey farm hassler
|
190
|
98
|
?
|
?
|
?
|
p97 lumps of muck hassler
|
112
|
99
|
?
|
?
|
?
|
?
|
?
|
100
|
centinal
|
Bill Gosper
|
≤1987
|
p100 pi-heptomino hassler
|
52
|
101
|
116P101
|
iNoMed
|
2023
|
116P101
|
116
|
102
|
Raucci's p102
|
David Raucci
|
2022
|
Raucci's p102
|
67
|
103
|
?
|
?
|
?
|
?
|
?
|
104
|
B-52 bomber
|
Noam Elkies
|
1996
|
capped B-52 bomber
|
95
|
105
|
p105 lumps of muck hassler
|
Carson Cheng
|
2023
|
p105 R-pentomino hassler
|
136
|
106
|
?
|
?
|
?
|
66P106
|
66
|
107
|
86P107
|
Mitchell Riley
|
2023
|
86P107
|
86
|
108
|
?
|
?
|
?
|
?
|
?
|
109
|
p109 R-pentomino hassler
|
Nico Brown
|
2022
|
p109 R-pentomino hassler
|
192
|
110
|
p110 traffic jam
|
Bill Gosper
|
1994
|
p110 honey farm hassler
|
108
|
111
|
p111 R-pentomino hassler
|
Mitchell Riley
|
2022
|
p111 R-pentomino hassler
|
292
|
112
|
p112 pi and loaf hassler
|
JP21
|
2022
|
p112 R-pentomino hassler
|
91
|
113
|
?
|
?
|
?
|
nihonium
|
106
|
114
|
Capped period-114 glider gun
|
David Raucci
|
2022
|
p114 unnamed object hassler
|
168
|
115
|
?
|
?
|
?
|
p115 lumps of muck hassler
|
96
|
116
|
p116 L-hexomino shuttle
|
David Raucci
|
2022
|
p116 L-hexomino shuttle
|
155
|
117
|
Capped period-117 glider gun
|
David Raucci
|
2021
|
capped period-117 glider gun
|
162
|
118
|
86P118
|
Period1GliderGun
|
2024
|
86P118
|
86
|
119
|
72P119
|
Mitchell Riley
|
2023
|
72P119
|
72
|
120
|
?
|
?
|
?
|
capped Simkin glider gun
|
45
|
121
|
p121 pi-heptomino hassler
|
iNoMed
|
2023
|
p121 pi-heptomino hassler
|
168
|
122
|
p122 R-pentomino hassler
|
Nico Brown
|
2022
|
p122 R-pentomino hassler
|
102
|
123
|
p123 R-pentomino hassler
|
Period1GliderGun
|
2024
|
p123 R-pentomino hassler
|
116
|
124
|
p124 lumps of muck hassler
|
Dean Hickerson
|
1994
|
p124 lumps of muck hassler
|
144
|
125
|
p125 pi-heptomino hassler
|
praosylen
|
2021
|
p125 pi-heptomino hassler
|
208
|
126
|
p126 pi-heptomino hassler
|
Multiple
|
2021
|
p126 R-pentomino hassler
|
52
|
127
|
74P127
|
Luke Kiernan
|
2022
|
74P127
|
74
|
128
|
?
|
?
|
?
|
62P128
|
62
|
129
|
p129 R-pentomino hassler
|
Luka Okanishi
|
2022
|
p129 R-pentomino hassler
|
38
|
130
|
p130 shuttle
|
David Eppstein
|
2001
|
p130 shuttle
|
124
|
131
|
?
|
?
|
?
|
?
|
?
|
132
|
?
|
?
|
?
|
p132 pi-heptomino hassler
|
92
|
133
|
p133 B-heptomino hassler
|
Matthias Merzenich
|
2023
|
p133 B-heptomino hassler
|
140
|
134
|
unnamed
|
Entity Valkyrie
|
2024
|
unnamed
|
141
|
135
|
106P135
|
Bill Gosper
|
1989
|
?
|
?
|
136
|
?
|
?
|
?
|
?
|
?
|
137
|
?
|
?
|
?
|
?
|
?
|
138
|
?
|
?
|
?
|
Gabriel's p138
|
36
|
139
|
p139 century/I-heptomino hassler
|
Mitchell Riley
|
2023
|
p139 century/I-heptomino hassler
|
156
|
140
|
?
|
?
|
?
|
p140 two-glider octomino hassler
|
58
|
141
|
?
|
?
|
?
|
p47 pre-pulsar shuttle phase-shifting 28P7.1
|
114
|
142
|
?
|
?
|
?
|
?
|
?
|
143
|
?
|
?
|
?
|
p143 Bandersnatch loop
|
144
|
144
|
?
|
?
|
?
|
Achim's p144
|
42
|
146
|
p146 pi-heptomino hassler
|
Mitchell Riley, Luke Kiernan
|
2022
|
p146 pi-heptomino hassler
|
51
|
150
|
?
|
?
|
?
|
capped p150 R-pentomino hassler glider gun
|
90
|
152
|
?
|
?
|
?
|
?
|
?
|
156
|
p156 Hans Leo hassler
|
Noam Elkies
|
1995
|
Jason's p156
|
92
|
165
|
?
|
?
|
?
|
?
|
?
|
166
|
p166 R-pentomino hassler
|
Mitchell Riley
|
2022
|
p166 R-pentomino hassler
|
102
|
168
|
Pi orbital
|
Noam Elkies
|
1995
|
pi orbital
|
197
|
171
|
p171 pi-heptomino hassler
|
Mitchell Riley
|
2022
|
p171 pi-heptomino hassler
|
128
|
177
|
Karel's p177
|
Karel Suhadja
|
2007
|
Karel's p177
|
104
|
184
|
?
|
?
|
?
|
capped period-184 glider gun
|
50
|
186
|
?
|
?
|
?
|
?
|
?
|
188
|
?
|
?
|
?
|
AK-94 with boat-bits
|
108
|
192
|
|
|
|
59P192
|
59
|
196
|
p196 pi-heptomino hassler
|
David Raucci
|
2021
|
p196 pi-heptomino hassler
|
66
|
199
|
84P199
|
Mitchell Riley, Luke Kiernan
|
2022
|
84P199
|
84
|
200
|
p200 traffic jam
|
Bill Gosper
|
1994
|
?
|
?
|
217
|
Raucci's p217
|
David Raucci
|
2021
|
Raucci's p217
|
236
|
226
|
?
|
?
|
?
|
nihonium*
|
107
|
240
|
?
|
?
|
?
|
Simkin glider gun with boat-bits
|
43
|
246
|
?
|
?
|
?
|
period-246 glider gun relative
|
68
|
256
|
?
|
?
|
?
|
86P256
|
86
|
276
|
?
|
?
|
?
|
two Gabriel's p138s hassling block
|
76
|
300
|
?
|
?
|
?
|
?
|
?
|
312
|
60P312
|
Dave Greene
|
2004
|
60P312
|
60
|
320
|
?
|
?
|
?
|
?
|
?
|
360
|
Period-360 glider gun
|
David Buckingham
|
1992
|
capped period-360 glider gun
|
108
|
368
|
?
|
?
|
?
|
period-184 glider gun with boat-bits
|
50
|
384
|
|
|
|
51P384
|
51
|
486
|
p486 R-pentomino hassler
|
David Raucci
|
2021
|
p486 R-pentomino hassler
|
142
|
492
|
?
|
?
|
?
|
period-246 glider gun with boat-bit
|
87
|
504
|
?
|
?
|
?
|
R126 loop
|
111
|
512
|
?
|
?
|
?
|
period-256 glider gun with boat-bits
|
100
|
576
|
p576 R-pentomino hassler
|
David Raucci
|
2021
|
p576 R-pentomino hassler
|
184
|
808
|
?
|
?
|
?
|
?
|
?
|
856
|
p856 Herschel loop gun
|
David Buckingham
|
1991
|
?
|
?
|
1008
|
?
|
?
|
?
|
R126 loop with boat-bits
|
107
|
2700
|
crystallization and decay oscillator
|
Dean Hickerson
|
1990
|
Crystallization and decay oscillator
|
144
|