A146500 Number of n X n arrays of squares of integers summing to 15 with every element equal to at least one neighbor.

0, 72, 9780, 668362, 173484536, 10081326340, 182802386772, 1760679542512, 11472302452452

Offset

2,2

Links

Table of n, a(n) for n=2..10.

Crossrefs

Sequence in context: A093272 A105347 A093236 * A271190 A271191 A271192

Adjacent sequences: A146497 A146498 A146499 * A146501 A146502 A146503

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved