A162055 - OEIS

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A162055

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

0

1, 1, 3, 12, 97, 2133, 143255, 31015645, 21966240871, 51191024327372

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OFFSET

1,3

LINKS

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

CROSSREFS

Sequence in context: A115245 A145074 A374582 * A067300 A133359 A102687

Adjacent sequences: A162052 A162053 A162054 * A162056 A162057 A162058

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 25 2009

STATUS

approved