A067464 - OEIS

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A067464

Primes p such that sigma(p-1)+sigma(p+1) is prime.

2, 5, 37, 101, 257, 401, 4801, 12101, 22501, 25537, 25601, 31249, 33857, 160001, 217157, 401957, 404497, 476101, 512657, 583697, 1020101, 1270417, 1322501, 1503377, 1674437, 1943237, 2005057, 2016401, 2056357, 2689601, 2755601, 2842597, 3686401, 3920401 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`H. v. Eitzen, Table of n, a(n) for n=1..150`
	CROSSREFS	`Sequence in context: A086218 A202637 A138658 * A081545 A097496 A099657` `Adjacent sequences: A067461 A067462 A067463 * A067465 A067466 A067467`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 23 2002`
	EXTENSIONS	`More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 18 2002`

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.