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A153526 Number of planar n X n X n binary triangular grids with no more than 5 ones in any 3 X 3 X 3 subtriangle. 0
1, 2, 8, 63, 981, 30024, 1807250, 213927268, 49795084180, 22791997973462, 20514123247423935, 36307660199677051280, 126362515904909451106459, 864794574138352010221407430, 11638106971975324518132459725847 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..14.

CROSSREFS

Sequence in context: A193195 A098000 A084279 * A153554 A139018 A110708

Adjacent sequences:  A153523 A153524 A153525 * A153527 A153528 A153529

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 01 2009

STATUS

approved

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Last modified July 22 20:51 EDT 2019. Contains 325226 sequences. (Running on oeis4.)