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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.
0
1, 2, 3, 12, 105, 2369, 173945, 39994381, 29262267753, 69801229348136
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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
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Last modified August 20 05:24 EDT 2024. Contains 375310 sequences. (Running on oeis4.)