A253098 Partial sums of A169707.

1, 6, 15, 36, 61, 98, 155, 240, 329, 430, 551, 700, 869, 1082, 1363, 1704, 2049, 2406, 2783, 3188, 3613, 4082, 4619, 5216, 5833, 6494, 7223, 8028, 8917, 9962, 11203, 12568, 13937, 15318, 16719, 18148, 19597, 21090, 22651, 24272, 25913, 27598, 29351, 31180, 33093, 35162, 37427

Offset

0,2

Comments

Also, total number of cubic ON cells after n generations in a three-dimensional cellular automaton in which A169707(n) gives the number of cubic ON cells in the n-th level of the structure starting from the top. The structure looks like an irregular stepped pyramid. Note that there are two versions of this pyramid because there are two versions of the structure of the cellular automaton of A169707. - Omar E. Pol, Feb 17 2015

Links

Table of n, a(n) for n=0..46.

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. A169707.

Sequence in context: A273451 A272928 A269567 * A272989 A273644 A273797

Adjacent sequences: A253095 A253096 A253097 * A253099 A253100 A253101

Keyword

nonn

Author

N. J. A. Sloane, Feb 16 2015

Status

approved