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A166220 Number of 12X12X12 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n +0
1
1, 325, 52518, 4173156, 165533393, 4118194905, 73044448611, 958018305487, 9916013916442, 84913600697770 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A133447 A031606 A145414 this_sequence A121000 A048909 A097739

Adjacent sequences: A166217 A166218 A166219 this_sequence A166221 A166222 A166223

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Oct 09 2009

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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