id:A067464 - OEIS Search Results

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

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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 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`H. v. Eitzen, Table of n, a(n) for n=1..150`
	CROSSREFS	`Sequence in context: A163499 A086218 A138658 this_sequence A081545 A097496 A099657` `Adjacent sequences: A067461 A067462 A067463 this_sequence A067465 A067466 A067467`
	KEYWORD	`more,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 November 25 20:09 EST 2009. Contains 167514 sequences.

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