A067242 - OEIS

This site is supported by donations to The OEIS Foundation.

A067242

Numbers n such that sigma(n+1)+sigma(n-1)=5*phi(n).

2, 3, 4, 32, 58, 133, 221, 377, 407, 472, 1241, 1978, 7232, 13181, 13952, 15323, 15409, 17362, 22328, 32048, 44215, 46192, 46498, 46975, 49228, 73169, 74498, 128723, 177305 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A076592 A004844 A037324 * A028354 A028355 A074920` `Adjacent sequences: A067239 A067240 A067241 * A067243 A067244 A067245`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 20 2002`

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

Last modified February 16 10:53 EST 2012. Contains 205904 sequences.