A172536 Number of n X n 0..1 arrays with row sums 8 and column sums 8.

0, 0, 0, 0, 0, 0, 0, 1, 362880, 1371785398200, 7673688777463632000, 65599839591251908982712750, 885282776210120715086715619724160, 19040419266278799766631032461849139013040

Offset

1,9

Links

R. H. Hardin, Table of n, a(n) for n=1..22

Crossrefs

Column k=8 of A008300.

Sequence in context: A246220 A160319 A227671 * A287085 A071551 A181725

Adjacent sequences: A172533 A172534 A172535 * A172537 A172538 A172539

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved