id:A067234 - OEIS Search Results

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Numbers n such that phi(4n+1)=sigma(n).

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56, 476, 2840, 4676, 8120, 9416, 16256, 23940, 25056, 28520, 30566, 32760, 36146, 37716, 39816, 55676, 56306, 65280, 66056, 129260, 135840, 143096, 149960, 155876, 176736, 185240, 198240, 198396, 202676, 232596, 252756, 257312, 296786 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Are there any odd terms in the sequence?`
	CROSSREFS	`Sequence in context: A075283 A008447 A076647 this_sequence A048540 A005931 A027793` `Adjacent sequences: A067231 A067232 A067233 this_sequence A067235 A067236 A067237`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 20 2002`

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research