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A162080 Number of n X n symmetric 0..4 arrays with rows, considered as 5-ary numbers, in nondecreasing order. 1
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

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Last modified May 20 16:51 EDT 2024. Contains 372719 sequences. (Running on oeis4.)