A162080 - OEIS

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A162080

Number of n X n symmetric 0..4 arrays with rows, considered as 5-ary numbers, in nondecreasing order.

5, 65, 2885, 492545, 340022021, 980195178305, 12095799705910085, 651547912318129391105, 155578901160322401759995909, 166731137713145923166606394940481

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..12

CROSSREFS

Sequence in context: A247540 A171800 A195244 * A012476 A195516 A167536

Adjacent sequences: A162077 A162078 A162079 * A162081 A162082 A162083

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 25 2009

STATUS

approved