A172534 Number of n X n 0..1 arrays with row sums 12 and column sums 12.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 6227020800, 676508133623135814000, 65662040698002721810659005184000, 6892692735539278753058456514221737762215000

Offset: 1

Author

R. H. Hardin, Feb 06 2010

Keywords

• nonn

Links

• R. H. Hardin, Table of n, a(n) for n=1..18

Crossrefs

Column k=12 of A008300.