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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
0
1, 1, 4, 14, 142, 3134, 221581, 49050842, 35006854714, 81519899795878
OFFSET
1,3
CROSSREFS
Sequence in context: A333730 A344201 A254718 * A247526 A111266 A098851
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved