A162042 Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and no more than 8 ones in any row

2, 5, 17, 86, 698, 9551, 226592, 9471845, 695682342, 86238293547, 17168508065099, 5086739366269620, 2115486636919118021

Offset

1,1

Links

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

Crossrefs

Sequence in context: A162039 A162040 A162041 * A162043 A016121 A216519

Adjacent sequences: A162039 A162040 A162041 * A162043 A162044 A162045

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved