A146517 Number of n X n arrays of squares of integers summing to 23 with every element equal to at least one neighbor.

0, 64, 23924, 7262690, 3369041920, 1194672642926

Offset

2,2

Links

Table of n, a(n) for n=2..7.

Crossrefs

Sequence in context: A083282 A082502 A052200 * A009497 A145258 A202911

Adjacent sequences: A146514 A146515 A146516 * A146518 A146519 A146520

Keyword

nonn,more

Author

R. H. Hardin, Apr 14 2009

Status

approved