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A153528 Number of planar n X n X n binary triangular grids with no more than 3 ones in any 4 X 4 X 4 subtriangle. 0
1, 2, 8, 42, 176, 1656, 25535, 536768, 14123143, 595925622, 38030336629, 3481512865400, 454136719811653, 87600895347244742 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A226458 A153537 A153565 * A153557 A231103 A114204

Adjacent sequences:  A153525 A153526 A153527 * A153529 A153530 A153531

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 01 2009

STATUS

approved

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Last modified July 15 16:09 EDT 2019. Contains 325049 sequences. (Running on oeis4.)