id:A067799 - OEIS Search Results

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

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2, 3, 5, 115, 143, 287, 371, 413, 623, 791, 4067, 10031, 24149, 32335, 39689, 88403, 93443, 107365, 148735, 168833, 212993, 427763, 555947, 650095, 925253, 1017821, 1117457, 1139467, 1229327, 1270801, 1407295, 2184221, 2294509 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Adjacent sequences: A067796 A067797 A067798 this_sequence A067800 A067801 A067802` `Sequence in context: A065406 A111331 A118505 this_sequence A117702 A041343 A064936`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 07 2002`
	EXTENSIONS	`More terms from Dean Hickerson (dean(AT)math.ucdavis.edu), Feb 16 2002`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

AT&T Labs Research