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A151781 Partial sums of A151779. 7
1, 7, 13, 43, 49, 79, 109, 259, 265, 295, 325, 475, 505, 655, 805, 1555, 1561, 1591, 1621, 1771, 1801, 1951, 2101, 2851, 2881, 3031, 3181, 3931, 4081, 4831, 5581, 9331, 9337, 9367, 9397, 9547, 9577, 9727, 9877, 10627, 10657, 10807, 10957, 11707, 11857, 12607 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Total number of ON cells after n-th generation of cellular automaton based on Z^3 lattice in the same way that A147562 is based on the Z^2 lattice. Here each cell has six neighbors.

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata

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

PROG

(PARI) a(n)=sum(k=1, n, 6*5^(hammingweight(k-1)-1)\1) \\ Charles R Greathouse IV, Sep 14 2015

CROSSREFS

Cf. A147562, A151779, A151790, A151792, A151793.

Sequence in context: A241718 A259184 A259186 * A224502 A047977 A139403

Adjacent sequences:  A151778 A151779 A151780 * A151782 A151783 A151784

KEYWORD

nonn,look

AUTHOR

N. J. A. Sloane, Jun 25 2009

STATUS

approved

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Last modified May 24 03:21 EDT 2017. Contains 286937 sequences.