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Search: id:A153551
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A153551 Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 3 X 3 X 3 subtriangle. +0
1
1, 2, 7, 22, 138, 1319, 16363, 320308, 9347304, 395198881, 24967400825, 2338902316070, 323464731245071, 66313728025965398, 20135677790841925784, 9050070037089457390796, 6023866973628415403731955 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A004300 A049369 A153523 this_sequence A125285 A122631 A147969

Adjacent sequences: A153548 A153549 A153550 this_sequence A153552 A153553 A153554

KEYWORD

nonn

AUTHOR

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

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Last modified March 15 12:29 EDT 2010. Contains 173428 sequences.

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