A166184 Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 12

1, 13, 455, 23464, 11477240, 20485423871, 106493297313816

Offset

0,2

Links

Table of n, a(n) for n=0..6.

Crossrefs

Sequence in context: A218586 A251601 A338177 * A272656 A081862 A198012

Adjacent sequences: A166181 A166182 A166183 * A166185 A166186 A166187

Keyword

nonn

Author

R. H. Hardin Oct 09 2009

Status

approved