id:A114529 - OEIS Search Results

Search: id:A114529

Displaying 1-1 of 1 results found.

page 1

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

+0
4

41, 929, 1301, 30240, 32760, 260609 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, WathWorld`
	CROSSREFS	`Cf. A113285, A114528.` `Adjacent sequences: A114526 A114527 A114528 this_sequence A114530 A114531 A114532` `Sequence in context: A010957 A010993 A090836 this_sequence A038397 A104349 A091314`
	KEYWORD	`nonn`
	AUTHOR	`Yasutsohi Kohmoto zbi74583(AT)boat.zero.ad.jp, Feb 15 2006`

page 1

Search completed in 0.002 seconds

Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.