Butter

	Butter
	<a href="/wiki/File:Butter.png" class="image" title="Butter image"><img alt="Butter image" src="/w/images/f/f1/Butter.png" decoding="async" width="273" height="273" /></a>
	<a href="/wiki/File:Butter.png" class="image" title="Butter image"><img alt="Butter image" src="/w/images/f/f1/Butter.png" decoding="async" width="273" height="273" /></a>
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Pattern type	Oscillator
Number of cells	48
Bounding box	14 × 14
Period	4 (mod: 2)
Heat	18
Volatility	0.57 \| 0.48
Kinetic symmetry	n/
Discovered by	Entity Valkyrie
Year of discovery	2019
Rules
Outer-totalistic rules	B3/S23 – B378/S2378
# of rules	24 = 16
Isotropic rules	B3-kqry/S2ckn3acjn – B34-jq5-ck6-c78/S234-akn5-ijy6-c78
Glider synthesis
Fewest gliders	22†
Catagolue-generated RLE	synthesis
Uploaded synthesis RLE	butter_synth.rle
	†Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files
Plaintext	butter.cells
RLE	butter.rle
Identifiers
apgcode	xp4_y0ggw7na4ozoog168kic011z15a96

Butter is an oscillator first discovered by Entity Valkyrie in 2019.^[1]

It only requires the corner dot spark, so molds can be in either orientatiion singly and doubly trans isomers.

Occurrence

Being glide-symmetric with a minpop of 38, it is not conducive to soup searches, and has not occurred in any censuses.

Synthesis

A final step for all three variants (creating the supporting molds from long boats while converting a mold with a single glider) was found by Goldtiger997 two days after its discovery.^[2]

x = 64, y = 113, rule = B3/S23
25bo$21bo2bo$19b2o3b3o$20b2o4$30bo$18bo10bo$17bobo6bo2b3o25b2o$16bobo5b2o30bo2bo$16b2o7b2o29bobo$57bob2o$13b2o38b2o3b3o$12bo2bo12b2o22bo2bo3b2o$12bobobo11bobo21bobo$13bo2bo11bo24bo$9b2o6bo31b2o$8bobo3bobo31bo2bo$7bobo38bobo$b2o5bo40bob2o$2b2o46b3o$bo49b2o$23b2o$22b2o$3o6b2o13bo$2bo7b2o$bo7bo$13b2o$13bobo$7b3o3bo$9bo$8bo8$25bo$21bo2bo$19b2o3b3o$20b2o4$30bo$18bo10bo$17bobo6bo2b3o25b2o$16bobo5b2o30bo2bo$16b2o7b2o29bobo$57bob2o$13b2o38b2o3b3o$12bo2bo12b2o22bo2bo3b2o$12bobobo11bobo21bobo$13bo2bo11bo24bo$3bo13bo$4bo9bobo$2b3o$50b3o$6bo43b3obo$6b2o6b2o35bobobo$b2o2bobo5bobo7b2o27bo2bo$obo9bobo7b2o29b2o$2bo10bo10bo4$11bo$6b2o3b2o$5bobo2bobo$7bo10$22bo$18bo3bobo$19bo2b2o$17b3o2$20bobo6bo$20b2o7bobo$21bo7b2o3$28bobo27b3o$13b2o8bo4b2o23b2o3b3obo$12bo2bo6bobo4bo22bo2bo3bobobo$12bobobo4bobo28bobo5bo2bo$13bo2bo4b2o30bo7b2o$3bo13bo$4bo9bobo$2b3o$50b3o$6bo43b3obo$6b2o6b2o35bobobo$b2o2bobo5bobo6b2o28bo2bo$obo9bobo6b2o30b2o$2bo10bo9bo4$11bo$6b2o3b2o$5bobo2bobo$7bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 ZOOM 8 HEIGHT 980 AUTOSTART GPS 4 T 0 PAUSE 1 T 25 PAUSE 1 LOOP 26 ]]

(click above to open LifeViewer)
Catagolue: here

In other rules

The B3a transition can also be omitted rather than suppressed, allowing unsupported butters but preventing mold and jam.

x = 6, y = 6, rule = B3-a/S23
b2o$o$bo2bo$bobobo$2bo2bo$3b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 4 ZOOM 64 HEIGHT 560 AUTOSTART GPS 2 ]]

(click above to open LifeViewer)
Catagolue: here

References

↑ Entity Valkyrie (February 26, 2019). Re: Oscillator Discussion Thread, in which it was discovered
↑ Goldtiger997 (February 28, 2019). Re: Oscillator Discussion Thread, in which all three variants were synthesised

External links

Butter at the Life Lexicon
Butter at Adam P. Goucher's Catagolue

[post71795-1] Entity Valkyrie (February 26, 2019). Re: Oscillator Discussion Thread, in which it was discovered

[post72055-2] Goldtiger997 (February 28, 2019). Re: Oscillator Discussion Thread, in which all three variants were synthesised

[1]

[2]