A181233 Number of nX(n+3) binary matrices with all rows unique and all columns unique.

0, 0, 20160, 57415680, 418910083200, 9841604944066560, 811677284745084979200, 246193686664597924471296000, 282802656455710907157732271104000, 1254507391643066981024665558462201036800

Offset: 1

Author

R. H. Hardin Oct 10 2010

Keywords

• nonn

Crossrefs

Third subdiagonal of A181230.

Cf. A088310, A181231, A181232.

Formula

a(n) = A181230(n,n+3).

Extensions

More terms from Max Alekseyev, Jun 18 2016