A159369 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 7

12, 19028, 2940768, 318767900, 10588659260, 167797693208, 1648419588640, 11596123050584, 63725276919564, 289494934894140, 1130345502845984, 3900985410505140, 12149739981772028, 34697504891442080, 91996839455813600

Offset

4,1

Links

R. H. Hardin, Table of n, a(n) for n=4..24

Crossrefs

Sequence in context: A340166 A125547 A159421 * A175882 A216874 A012736

Adjacent sequences: A159366 A159367 A159368 * A159370 A159371 A159372

Keyword

nonn

Author

R. H. Hardin Apr 11 2009

Status

approved