A162120 Number of n X n binary arrays with rows and columns, considered as graycode numbers, in strictly increasing order, and no more than 3 ones in any row or column

2, 4, 25, 315, 5449, 125232, 3664172, 131659282, 5664283770, 286246908181

Offset

1,1

Links

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

Crossrefs

Sequence in context: A365097 A119029 A291144 * A162121 A162122 A162123

Adjacent sequences: A162117 A162118 A162119 * A162121 A162122 A162123

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved