A156461 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 14.

48, 36, 2952, 9216, 881382, 5913728, 977782336, 18737188768, 6632080108308, 286675559366712, 164256548772296153

Offset

4,1

Links

Table of n, a(n) for n=4..14.

Crossrefs

Sequence in context: A085517 A299525 A033694 * A347557 A300143 A187940

Adjacent sequences: A156458 A156459 A156460 * A156462 A156463 A156464

Keyword

nonn

Author

R. H. Hardin Feb 09 2009

Status

approved