A156404 Number of 10 X 10 arrays of squares of integers, symmetric under 90-degree rotation, with all rows summing to n.

1, 0, 810, 0, 23280, 0, 68180, 0, 175765, 0, 760131, 0, 2108280, 0, 3657680, 0, 5281910, 0, 13033260, 0, 29182380, 0, 37198440, 0, 46154300, 0, 85583500, 0, 202480300, 0, 193358000, 0, 232585695, 0, 373884780, 0, 747469740, 0, 798622160, 0, 860249751, 0

Offset

0,3

Links

Table of n, a(n) for n=0..41.

Crossrefs

Sequence in context: A332848 A160561 A346716 * A282376 A203844 A068278

Adjacent sequences: A156401 A156402 A156403 * A156405 A156406 A156407

Keyword

nonn

Author

R. H. Hardin, Feb 09 2009

Status

approved