A172543 Number of n X n 0..1 arrays with row sums 15 and column sums 15.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 20922789888000, 10268902998771351157327104000, 2767806480542211571651550187279222472704000

Offset: 1

Author

R. H. Hardin, Feb 06 2010

Keywords

• nonn

Links

• R. H. Hardin, Table of n, a(n) for n=1..20

Crossrefs

Column k=15 of A008300.