Jason's p22

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Jason's p22
x = 27, y = 10, rule = B3/S23 2o$bo$bobo13b3o$2b2o3bo8bo3bo$6bob2o6bo4bo$5bo4bo6b2obo$6bo3bo8bo3b2o$ 7b3o13bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 18 LOOP 22 ]]
Pattern type Oscillator
Number of cells 36
Bounding box 27×14
Period 22
Mod 22
Heat 35.6
Volatility 0.93
Strict volatility 0.93
Discovered by Jason Summers
Year of discovery 2000
This article is about the 36-cell period-22 oscillator. For the 22-cell period-36 oscillator, see 22P36.

Jason's p22 (or 36P22) is a period-22 oscillator discovered by Jason Summers on August 27, 2000.[1] It is composed of an unnamed reaction stabilized by two copies of eater 1. In terms of its 36 cells, it is the smallest known non-trivial period-22 oscillator, followed by p22 honey farm hassler and champagne glass with 40 and 45 cells, respectively.[2]

It gives off sparks, which in addition to allowing for the construction of non-trivial higher-period oscillators as seen in a later section, can be used to hassle various patterns shown in gallery below. Later on the day of the oscillator's discovery, David Eppstein found a way to combine two of them to produce the first true period-22 glider gun.

Glider synthesis

In February 2001, Jason Summers found a 12-glider synthesis of this oscillator,[3] which was improved to 11 gliders by 2718281828 in December 2017[4] and later 10 by Mark Niemiec in September 2019.[5]

Gallery

x = 49, y = 31, rule = B3/S23 22b2o7bo$23bo8bo2bo$23bobo4bo4bo4b2o$24b2o13bo2bo$29bo8b2ob2o$28b2ob2o 8bo$28bo2bo13b2o$29b2o4bo4bo4bobo$35bo2bo8bo$39bo7b2o4$23bo8b2o$16bo5b 2o7bobo$15bobo3bo10bo$15b2o5bobo$22bobo2$19b2o$2o16bo2bo$bo16b2obo$bob o4b3o5bo2b2o$2b2o4bobo4bo$7bo3bo3bo3bo$7bo3bo3bo3bo$11bo4bobo4b2o$6b2o 2bo5b3o4bobo$5bob2o16bo$5bo2bo16b2o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 22 HEIGHT 460 WIDTH 500 ]]
p22 lumps of muck hassler, found by praosylen
September 2015[6]; the boats can be
replaced by blocks
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 49, y = 38, rule = B3/S23 22b2o$23bo$23bobo13b3o$24b2o3bo8bo3bo$28bob2o6bo4bo$27bo4bo6b2obo$28b o3bo8bo3b2o$29b3o13bobo$47bo$47b2o5$25b2o$24bobo$23b2obo$12b2o10b2o7b 2o$13bo11bo7bobo$13bobo7bo11bo$14b2o7b2o10b2o$22bob2o$22bobo$22b2o5$2o $bo$bobo13b3o$2b2o3bo8bo3bo$6bob2o6bo4bo$5bo4bo6b2obo$6bo3bo8bo3b2o$7b 3o13bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 GPS 22 HEIGHT 500 WIDTH 500 ]]
p22 B-heptomino hassler, found by David Raucci
November 2021[7]
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 72, y = 25, rule = B3/S23 17bo36bo$16bobo6b2o18b2o6bobo$13b2o3bo6bo20bo6bo3b2o$7b2o5b3o6bobo20b obo6b3o5b2o$6bo2bo7bo5b2o22b2o5bo7bo2bo$7b2o9b2o32b2o9b2o$7b2o9b2o32b 2o9b2o$2b2o5bo7bo2bo30bo2bo7bo5b2o$bobo6b3o5b2o32b2o5b3o6bobo$bo6bo3b 2o17bob2o2b2obo17b2o3bo6bo$2o6bobo18bo3b2o2b2o3bo18bobo6b2o$9bo19bo12b o19bo$30bo10bo$19bo32bo$2o16bobo30bobo16b2o$bo19bo28bo19bo$bobo13bo2b o30bo2bo13bobo$2b2o4b3o5b2o36b2o5b3o4b2o$7bo2bo8bo32bo8bo2bo$7bo8bo2b o32bo2bo8bo$9b2o5b3o4b2o22b2o4b3o5b2o$6bo2bo13bobo20bobo13bo2bo$5bo19b o20bo19bo$6bobo16b2o18b2o16bobo$7bo56bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 22 ]]
p110 century shuttle, found by David Raucci
February 2022[8]; similar to diuresis
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 27, y = 16, rule = B3/S23 23b2o$22bo2bo$22bobo$23bob2o$24b3o$25b2o$2o$bo$bobo13b3o$2b2o3bo8bo3bo $6bob2o6bo4bo$5bo4bo6b2obo$6bo3bo8bo3b2o$7b3o13bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 10 GPS 22 ]]
p44 mold on Jason's p22, smallest known non-trivial p44
oscillator until 2016 discovery of mold on rattlesnake
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 88, y = 51, rule = B3/S23 61b2o7bo$62bo8bo2bo$62bobo4bo4bo4b2o$58b2o3b2o13bo2bo$58b2o8bo8b2ob2o $67b2ob2o8bo$67bo2bo13b2o$53b2o3bobo7b2o4bo4bo4bobo$53b2o3bo2bo12bo2b o8bo$58bobo17bo7b2o4$58bo$44b2o12b3o$44b2o2$48bo$39b2o6bobo2b3o$39b2o 20b2o$47b3o2bobo6b2o$53bo2$56b2o$41b3o12b2o$30b2o11bo$30b2o3$25b2o3bo bo8bobo$25b2o3bo2bo6bo2bo3b2o$30bobo8bobo3b2o3$42b2o$30bo11b2o$30b3o3$ 19b2o$2o16bo2bo2b3o$bo16b2obo11b2o$bobo4b3o5bo2b2o3bobo6b2o$2b2o4bobo 4bo9bo$7bo3bo3bo3bo$7bo3bo3bo3bo8b2o$11bo4bobo4b2o3b2o$6b2o2bo5b3o4bo bo$5bob2o16bo$5bo2bo16b2o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 22 HEIGHT 500 WIDTH 800 ]]
Extensible p22 traffic light hassler, found by Matthias Merzenich June 2021[9]
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere

LCM oscillators

The oscillators below are listed due to being the smallest known ones by population, while also satisfying the condition that at least one cell oscillates at the full period.

x = 33, y = 13, rule = B3/S23 27bo$25bo3b4o$25bo3bo$2o23bo$bo26bo$bobo13b3o6b2o$2b2o3bo8bo3bo$6bob2o 6bo4bo$5bo4bo6b2obo$6bo3bo8bo3b2o$7b3o13bobo$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 22 THUMBSIZE 2 ZOOM 12 LOOP 66 ]]
p66 with caterer
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere
x = 35, y = 14, rule = B3/S23 23b2o$23bo$25b2o2$2o24bobo$bo$bobo13b3o8bobo$2b2o3bo8bo3bo$6bob2o6bo4b o8bobo$5bo4bo6b2obo11bo$6bo3bo8bo3b2o9bo$7b3o13bobo7b2o$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 22 THUMBSIZE 2 ZOOM 12 LOOP 110 ]]
p110 with pseudo-barberpole
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagoluehere

See also

  • 30P25, another rotationally symmetric oscillator consisting of an active region supported by two fishhooks

References

  1. Jason Summers' all-osc pattern collection.
  2. "Class 2 Objects Catalog". Retrieved on April 9, 2009.
  3. Jason Summers' jslife pattern collection.
  4. 2718281828 (December 6, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  5. Mark Niemiec (September 30, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  6. praosylen (September 20, 2015). Re: Thread For Your Accidental Discoveries (discussion thread) at the ConwayLife.com forums
  7. David Raucci (November 2, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  8. David Raucci (February 17, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  9. Matthias Merzenich (June 16, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums

External links

  • 36P22.1 at Heinrich Koenig's Game of Life Object Catalogs