A166209 Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 14

1, 15, 5, 24, 768, 4862, 99088, 11604117, 241988291, 24508598458, 14166568176196

Offset

0,2

Links

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

Crossrefs

Sequence in context: A114332 A051998 A131611 * A040215 A335879 A147422

Adjacent sequences: A166206 A166207 A166208 * A166210 A166211 A166212

Keyword

nonn

Author

R. H. Hardin Oct 09 2009

Status

approved