A156390 Number of 6X6 arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to n.

1, 0, 12, 0, 12, 0, 7, 0, 24, 0, 54, 0, 18, 0, 24, 0, 36, 0, 90, 0, 78, 0, 42, 0, 31, 0, 126, 0, 78, 0, 24, 0, 72, 0, 168, 0, 150, 0, 90, 0, 114, 0, 174, 0, 114, 0, 72, 0, 66, 0, 366, 0, 336, 0, 127, 0, 120, 0, 432, 0, 186, 0, 96, 0, 132, 0, 186, 0, 450, 0, 210, 0, 246, 0, 438, 0, 264, 0

Offset

0,3

Links

Table of n, a(n) for n=0..77.

Crossrefs

Sequence in context: A048730 A307163 A254526 * A059680 A307170 A332053

Adjacent sequences: A156387 A156388 A156389 * A156391 A156392 A156393

Keyword

nonn

Author

R. H. Hardin Feb 09 2009

Status

approved