id:A116014 - OEIS Search Results

Search: id:A116014

Displaying 1-1 of 1 results found.

page 1

n+sigma(n)+sigma(sigma(n)) is a square.

+0
5

2, 9, 19, 98, 141, 176, 319, 396, 467, 691, 729, 970, 1113, 1279, 1447, 1473, 1873, 1974, 2403, 3712, 5208, 5965, 6777, 7183, 8353, 8769, 8881, 8962, 10137, 10180, 10771, 11314, 12016, 12241, 13624, 15196, 19683, 19705, 20053, 20553, 21241 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`1113+sigma(1113)+sigma(sigma(1113))=89^2.`
	CROSSREFS	`Cf. A116012, A116013, A116015.` `Adjacent sequences: A116011 A116012 A116013 this_sequence A116015 A116016 A116017` `Sequence in context: A135207 A026541 A038249 this_sequence A090939 A077338 A047883`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006`

page 1

Search completed in 0.002 seconds

Last modified October 13 17:46 EDT 2008. Contains 145008 sequences.

AT&T Labs Research