OFFSET
0,2
COMMENTS
Square grid, 4 neighbors per cell, turn ON iff exactly 1, 3 or 4 neighbors are ON; once ON, cells stay ON.
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 928.
LINKS
MATHEMATICA
Map[Function[Apply[Plus, Flatten[ #1]]], CellularAutomaton[{ 1006, {2, {{0, 2, 0}, {2, 1, 2}, {0, 2, 0}}}, {1, 1}}, {{{1}}, 0}, 100]]
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 17 2010
STATUS
approved