id:A004163 - OEIS Search Results

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Pentagonal numbers written backwards.

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1, 5, 21, 22, 53, 15, 7, 29, 711, 541, 671, 12, 742, 782, 33, 673, 524, 774, 235, 95, 156, 517, 287, 258, 529, 1001, 801, 2611, 7421, 5331, 6241, 251, 7161, 7171, 281, 6291, 5302, 7412, 2622, 832, 1052, 5262 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A000326.` `Adjacent sequences: A004160 A004161 A004162 this_sequence A004164 A004165 A004166` `Sequence in context: A053003 A165204 A043053 this_sequence A113410 A099654 A042319`
	KEYWORD	`nonn,base`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

AT&T Labs Research