A166216 Number of 8X8X8 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n

1, 17, 200, 1588, 9030, 40848, 157803, 526484, 1571016, 4285591, 10795845, 25412877, 56578703, 119636627, 241988291, 470828929, 884190706, 1608280291, 2844350256, 4899912505, 8243127504, 13571819655, 21901928396, 34695730340

Offset

0,2

Links

R. H. Hardin, Table of n, a(n) for n=0..42

Crossrefs

Sequence in context: A125429 A244002 A201258 * A021134 A065895 A009479

Adjacent sequences: A166213 A166214 A166215 * A166217 A166218 A166219

Keyword

nonn

Author

R. H. Hardin Oct 09 2009

Status

approved