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A253089
Number of ON cells at generation n of 9-celled totalistic CA defined by Rule 510.
3
1, 9, 20, 29, 69, 44, 112, 84, 228, 81, 253, 240, 361, 329, 408, 436, 552, 544, 656, 852, 748, 752, 1040, 1173, 1097, 928, 1389, 1857, 1208, 1244, 1664, 2457, 1448, 1636, 2028, 2732, 2164, 1957, 2841, 3204, 2849, 2301, 3504, 3869, 3548, 2756, 4140, 4509, 4060, 3388
OFFSET
0,2
FORMULA
It would be nice to have a recurrence.
MATHEMATICA
Map[Function[Apply[Plus, Flatten[#1]]],
CellularAutomaton[{510, {2, {{2, 2, 2}, {2, 1, 2}, {2, 2, 2}}}, {1, 1}}, {{{1}}, 0}, 66]]
ArrayPlot /@ CellularAutomaton[{510, {2, {{2, 2, 2}, {2, 1, 2}, {2, 2, 2}}}, {1, 1}}, {{{1}}, 0}, 15]
CROSSREFS
Cf. A169699 (5-neighbor analog).
Sequence in context: A356319 A050682 A094196 * A256383 A322433 A017497
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 12 2015
STATUS
approved