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A162068
Number of n X n binary arrays with rows and columns, considered as graycode numbers, in nondecreasing order, and no more than 4 ones in any row or column
0
2, 8, 58, 926, 28689, 1605029, 143303526, 18742331821, 3381674439844
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..9.
CROSSREFS
Sequence in context:
A086907
A132186
A191603
*
A162069
A162070
A162071
Adjacent sequences:
A162065
A162066
A162067
*
A162069
A162070
A162071
KEYWORD
nonn
AUTHOR
R. H. Hardin
Jun 25 2009
STATUS
approved
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Last modified July 19 22:26 EDT 2024. Contains 374440 sequences. (Running on oeis4.)