A162075 Number of n X n binary arrays with rows and columns, considered as graycode numbers, in nondecreasing order, and an even number of 1's in each row or column.

1, 2, 3, 12, 105, 2369, 173945, 39994381, 29262267753, 69801229348136

Offset

1,2

Links

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

Crossrefs

Sequence in context: A012586 A088223 A162053 * A333166 A245584 A102878

Adjacent sequences: A162072 A162073 A162074 * A162076 A162077 A162078

Keyword

nonn

Author

R. H. Hardin, Jun 25 2009

Status

approved