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A162039 Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and no more than 5 ones in any row 0
2, 5, 17, 86, 698, 8853, 157014, 3797408, 115090450, 4234205332, 185001672488, 9420876404098, 550756524966710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

CROSSREFS

Sequence in context: A191799 A079805 A162038 * A162040 A162041 A162042

Adjacent sequences:  A162036 A162037 A162038 * A162040 A162041 A162042

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 25 2009

STATUS

approved

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Last modified August 20 22:45 EDT 2019. Contains 326155 sequences. (Running on oeis4.)