A146294 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 8 and every element equal to at least one neighbor.

4, 6, 13372, 569370, 4490816, 20143086, 67388028, 187458768, 458291208, 1017185004, 2092976212, 4050199948, 7448027128, 13117064768

Offset

3,1

Links

Table of n, a(n) for n=3..16.

Crossrefs

Sequence in context: A137024 A054264 A077305 * A133982 A069179 A336764

Adjacent sequences: A146291 A146292 A146293 * A146295 A146296 A146297

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved