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Search: id:A153531
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A153531 Number of planar n X n X n binary triangular grids with no more than 6 ones in any 4 X 4 X 4 subtriangle. +0
1
1, 2, 8, 64, 848, 22118, 1088504, 99906335, 16924655106, 5358080457293, 3167558708716057, 3489738205098931415 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A005640 A153540 A153568 this_sequence A153560 A134956 A011803

Adjacent sequences: A153528 A153529 A153530 this_sequence A153532 A153533 A153534

KEYWORD

nonn

AUTHOR

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

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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