A146503 Number of n X n arrays of squares of integers summing to 16 with every element equal to at least one neighbor.

1, 92, 11280, 1104960, 254787279, 24163544599, 600100462863, 7188707496364

Offset

2,2

Links

Table of n, a(n) for n=2..9.

Crossrefs

Sequence in context: A093246 A267787 A267734 * A252593 A146515 A252631

Adjacent sequences: A146500 A146501 A146502 * A146504 A146505 A146506

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved