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A162131 Number of n X n symmetric 0..6 arrays with rows, considered as 7-ary numbers, in strictly increasing order 1
7, 168, 20664, 13420008, 48646451448, 1026088816521384, 129626970213767748408, 100146990341371129870445928, 480706456216438726881369732950904, 14515325887679952129833652850645598932008 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..11

CROSSREFS

Sequence in context: A165388 A124126 A086373 * A258299 A012067 A012145

Adjacent sequences:  A162128 A162129 A162130 * A162132 A162133 A162134

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 25 2009

STATUS

approved

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)