id:A114528 - OEIS Search Results

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Let S(n)=sigma(|n|)-3*n; sequence gives numbers n such that S(S(S(S(n))))=n. May be called {3,1}-Sociable number of orders 1 or 2 or 4.

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1248, 1596, 28272, 30240, 32760 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, WathWorld`
	CROSSREFS	`Cf. A113285, A114529. Contains A069146 as a subsequence.` `Sequence in context: A047628 A023065 A066696 this_sequence A069146 A047629 A020384` `Adjacent sequences: A114525 A114526 A114527 this_sequence A114529 A114530 A114531`
	KEYWORD	`nonn`
	AUTHOR	`Yasutoshi Kohmoto zbi74583(AT)boat.zero.ad.jp, Feb 15 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.