A162050 Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and no more than 8 ones in any row or column.

2, 7, 45, 650, 24520, 2625117, 836488618, 818230288201, 2450178750246304, 21127413841918751449

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Crossrefs

Sequence in context: A162047 A162048 A162049 * A162051 A089006 A019004

Adjacent sequences: A162047 A162048 A162049 * A162051 A162052 A162053

Keyword

nonn

Author

R. H. Hardin, Jun 25 2009

Status

approved