A166190 Number of 4 X 4 X 4 triangular nonnegative integer arrays with all sums of an element and its neighbors <= n.

1, 21, 207, 1298, 6052, 22824, 73383, 208269, 534687, 1264026, 2788834, 5802288, 11477240, 21726484, 39571482, 69652946, 118924069, 197575191, 320248137, 507608530, 788356140, 1201765708, 1800865001, 2656371783, 3861528515

Offset

0,2

Links

R. H. Hardin, Table of n, a(n) for n=0..31

Crossrefs

Sequence in context: A160768 A160769 A232352 * A232345 A036205 A160787

Adjacent sequences: A166187 A166188 A166189 * A166191 A166192 A166193

Keyword

nonn

Author

R. H. Hardin, Oct 09 2009

Status

approved