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Search: id:A153525
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A153525 Number of planar n X n X n binary triangular grids with no more than 4 ones in any 3 X 3 X 3 subtriangle. +0
1
1, 2, 8, 57, 775, 19641, 921690, 80625050, 13124722225, 3973078785189, 2237747461311054, 2344793549245488048, 4570701601942028573011, 16575255948705837833863791, 111824026459437969673639006613 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A153558 A027335 A133686 this_sequence A153553 A007347 A063074

Adjacent sequences: A153522 A153523 A153524 this_sequence A153526 A153527 A153528

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jan 01 2009

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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