A253908 - OEIS

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A253908

Partial sums of A072272.

1, 6, 11, 28, 33, 58, 75, 136, 141, 166, 191, 276, 293, 378, 439, 656, 661, 686, 711, 796, 821, 946, 1031, 1336, 1353, 1438, 1523, 1812, 1873, 2178, 2395, 3168, 3173, 3198, 3223, 3308, 3333, 3458, 3543, 3848, 3873, 3998, 4123, 4548, 4633, 5058, 5363, 6448, 6465, 6550, 6635, 6924, 7009, 7434, 7723, 8760, 8821, 9126, 9431, 10468

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OFFSET

0,2

COMMENTS

Also, total number of cubic ON cells after n generations in a three-dimensional cellular automaton where A072272(n) gives the number of cubic ON cells in the n-th level of the structure starting from the top. An ON cell remains ON forever. The structure looks like an irregular stepped pyramid.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..8192

N. J. A. Sloane, On the Number of ON Cells in Cellular Automata, arXiv:1503.01168, 2015

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

Index entries for sequences related to cellular automata

CROSSREFS

Cf. A072272, A116520, A245542, A253767.

Sequence in context: A007433 A061725 A105708 * A273504 A273608 A273681

Adjacent sequences: A253905 A253906 A253907 * A253909 A253910 A253911

KEYWORD

nonn

AUTHOR

Omar E. Pol, Jan 27 2015

EXTENSIONS

Offset changed to 0 by N. J. A. Sloane, Feb 06 2015

STATUS

approved