A172809 Number of n X n 0..4 arrays with row sums 5 and column sums 5.

0, 4, 189, 36840, 21107931, 29990997180, 92673325442124, 563326170709889664, 6228365853689321408640, 117660704031419990309224272, 3609165493134932351223036800520, 172329705795296334349960101885305088

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..35

Crossrefs

Sequence in context: A394319 A208184 A355613 * A123116 A163839 A012015

Adjacent sequences: A172806 A172807 A172808 * A172810 A172811 A172812

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved