id:A067229 - OEIS Search Results

Search: id:A067229

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Numbers n such that phi(2n+1)=sigma(n).

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6, 7, 27, 38, 55, 85, 87, 127, 188, 236, 255, 266, 445, 451, 655, 717, 913, 1309, 1357, 1490, 1947, 2095, 2515, 2726, 3002, 3247, 3289, 4117, 4237, 5071, 5605, 7195, 8924, 12128, 12625, 12771, 12837, 13190, 13795, 15835, 16197, 16748, 17997, 20257 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A135987 A054289 A041078 this_sequence A041535 A129214 A042419` `Adjacent sequences: A067226 A067227 A067228 this_sequence A067230 A067231 A067232`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 20 2002`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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