id:A145476 - OEIS Search Results

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Primes p such that (19+p)/2 is prime.

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3, 7, 19, 43, 67, 103, 127, 139, 199, 283, 307, 367, 379, 439, 463, 523, 547, 607, 643, 727, 739, 823, 859, 907, 1063, 1123, 1303, 1327, 1399, 1447, 1459, 1483, 1627, 1699, 1747, 1999, 2083, 2239, 2287, 2383, 2539, 2887, 3067, 3079, 3307, 3319, 3463, 3499 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`All these primes are congruent to 3 mod 4 and (with exception first one) to 5 mod 12`
	MATHEMATICA	`aa = {}; k = 19; Do[If[PrimeQ[(k + Prime[n])/2], AppendTo[aa, Prime[n]]], {n, 1, 500}]; aa`
	CROSSREFS	`A092109, A145471-A145480.` `Sequence in context: A163572 A086519 A090689 this_sequence A126938 A127990 A055622` `Adjacent sequences: A145473 A145474 A145475 this_sequence A145477 A145478 A145479`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 11 2008`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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