A146202 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 7 and every element equal to at least one neighbor.

0, 6, 10678, 169232, 895970, 3151504, 8793698, 21026206, 44936970, 88129194, 161444970, 279781318, 462998626, 736921490, 1134431954, 1696655150, 2474237338

Offset

3,2

Links

Table of n, a(n) for n=3..19.

Crossrefs

Sequence in context: A102979 A069942 A261823 * A227889 A242676 A145720

Adjacent sequences: A146199 A146200 A146201 * A146203 A146204 A146205

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved