OFFSET
0,2
COMMENTS
The number of ON cells at stage 2n+1 is infinite.
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; pp. 173-175.
LINKS
MATHEMATICA
Map[Function[Apply[Plus, Flatten[ #1]]], CellularAutomaton[{ 451, {2, {{0, 2, 0}, {2, 1, 2}, {0, 2, 0}}}, {1, 1}}, {{{1}}, 0}, 130]] (* then take every other term *)
ArrayPlot /@ CellularAutomaton[{451, {2, {{0, 2, 0}, {2, 1, 2}, {0, 2, 0}}}, {1, 1}}, {{{1}}, 0}, 23]
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 27 2014
STATUS
approved