A162106 Number of n X n binary arrays with rows and columns, considered as binary numbers, in strictly increasing order, and no more than 7 ones in any row or column

2, 3, 15, 234, 10706, 1411450, 539124281, 583952859856, 1625490469643110

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Crossrefs

Sequence in context: A162103 A162104 A162105 * A162107 A162108 A162100

Adjacent sequences: A162103 A162104 A162105 * A162107 A162108 A162109

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved