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A166209 Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 14 1
1, 15, 5, 24, 768, 4862, 99088, 11604117, 241988291, 24508598458, 14166568176196 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..10.

CROSSREFS

Sequence in context: A004480 A051998 A131611 * A040215 A147422 A147084

Adjacent sequences:  A166206 A166207 A166208 * A166210 A166211 A166212

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 09 2009

STATUS

approved

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Last modified April 23 02:15 EDT 2019. Contains 322380 sequences. (Running on oeis4.)