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A162133
Number of n X n symmetric 0..8 arrays with rows, considered as 9-ary numbers, in strictly increasing order
0
9, 360, 92640, 161285760, 2017447626240, 189005833196636160, 136458103771080331223040, 775113475209991141795962716160, 35190097760167101079770524663781130240
OFFSET
1,1
CROSSREFS
Sequence in context: A063068 A130558 A132593 * A197179 A373536 A344338
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved