38P7.2 is an unnamed period -7 oscillator discovered by Nicolay Beluchenko on February 17, 2009 .[1] sparks in generation 4 that are useful in creating p7 bumper as well as non-trivial oscillators of higher periods such as snacker on 38P7.2 . A variation of this oscillator can be created by displacing one half of the oscillator by two cells .
It first appeared semi-naturally in March 2016 .[2] gmc_nxtman found an 18 -glider synthesis of this oscillator on August 13, 2017 .[3] Goldtiger997 improved this to 14 gliders on February 12, 2018 .[4]
In March 2018 , Josh Ball found a pattern that can be stabilized by copies of 38P7.2 without blocks .[5]
In May 2022 , Charity Engine found 38P7.3, also known as meatball , in the C2_1 census on Catagolue . It has some of the same utility as 38P7.2, in a slightly smaller package.[6]
Gallery
x = 13, y = 13, rule = B3/S23
4bo$o2bobo$obo2bo2bo$bo2b2obobo2bo$5bobo2bobo$2b2o3b2o2bo$2bo4bo$4bo4b
2o$10bo$bo2bo3bo$2b2o$8bo2bo$9b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 ]]
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An alternate form of this oscillatorLifeViewer )RLE :here Plaintext :here
x = 24, y = 20, rule = B3/S23
o9bo$3o5b3o$3bo3bo$2b2o3b2o6bo3bo$11bo2bobobobo2bo$5bo5bobo2bobo2bobo$
5bo6bo2b2ob2o2bo$4bobo9bobo$5bo7b2o5b2o$5bo7bo7bo$5bo9bo3bo$5bo$4bobo
5bo2bo3bo2bo$5bo7b2o5b2o$5bo2$2b2o3b2o$3bo3bo$3o5b3o$o9bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 ]]
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Snacker on 38P7.2, the smallestLifeViewer )RLE :here Plaintext :here
See also References External links 38P7.2 at Heinrich Koenig's Game of Life Object Catalogs
