id:A067244 - OEIS Search Results

Search: id:A067244

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Numbers n such that phi(n) divides (sigma(n+1)+sigma(n-1)).

+0
1

2, 3, 4, 6, 32, 34, 54, 55, 58, 70, 84, 133, 141, 221, 285, 322, 377, 407, 472, 664, 684, 988, 1149, 1241, 1505, 1911, 1978, 2230, 2590, 2631, 2906, 2912, 3498, 6111, 6579, 7232, 8559, 11194, 13181, 13952, 15323, 15409, 15564, 17362, 18215, 18754, 22328 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A115035 A065199 A033179 this_sequence A051856 A084811 A135236` `Adjacent sequences: A067241 A067242 A067243 this_sequence A067245 A067246 A067247`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 20 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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