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Search: id:A162060
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A162060 Number of nXn symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 5 ones in any row or column +0
1
2, 6, 18, 100, 794, 10414, 190428, 4659387, 143848365, 5430367157, 242216815664, 12631766954130, 754181337363809 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A028857 A052687 A162059 this_sequence A162061 A162062 A162063

Adjacent sequences: A162057 A162058 A162059 this_sequence A162061 A162062 A162063

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jun 25 2009

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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