A146504 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 16 and every element equal to at least one neighbor.

1, 163, 44537, 12234095, 13115315167

Offset

3,2

Links

Table of n, a(n) for n=3..7.

Crossrefs

Sequence in context: A138932 A217963 A138200 * A306501 A247269 A145741

Adjacent sequences: A146501 A146502 A146503 * A146505 A146506 A146507

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved