Registry of Notable Universe Models

9 steps

wm9728wm9728

signature

22→42

rule

{{{1, 2}, {3, 2}} -> {{4, 1}, {1, 3}, {3, 4}, {4, 2}}}

{{{1, 2}, {3, 2}} -> {{4, 1}, {1, 3}, {3, 4}, {4, 2}}}