A114080 - OEIS

This site is supported by donations to The OEIS Foundation.

A114080

Numbers n such that sigma(n) times the n-th prime is a brilliant number (A078972).

2, 4, 9, 16, 25, 64, 729, 65536 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..8.`
	EXAMPLE	`sigma(25) * p(25) = 3007 = 31*97.`
	CROSSREFS	`Sequence in context: A110878 A077137 A023194 * A090676 A000291 A081055` `Adjacent sequences: A114077 A114078 A114079 * A114081 A114082 A114083`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta, Feb 13 2006`
	STATUS	`approved`

Content is available under The OEIS End-User License Agreement .

Last modified May 23 10:25 EDT 2013. Contains 225587 sequences.