A162077 Number of n X n binary arrays with rows and columns, considered as graycode numbers, in nondecreasing order, and an odd number of ones in each row or column

1, 1, 4, 14, 142, 3134, 221581, 49050842, 35006854714, 81519899795878

Offset

1,3

Links

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

Crossrefs

Sequence in context: A333730 A344201 A254718 * A247526 A111266 A098851

Adjacent sequences: A162074 A162075 A162076 * A162078 A162079 A162080

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved