id:A145490 - OEIS Search Results

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Numbers k such that 6k+19 is prime and 12k+1 is also prime

+0
8

-2, -1, 0, 2, 5, 7, 9, 10, 12, 14, 17, 20, 24, 27, 35, 40, 44, 47, 54, 62, 65, 69, 75, 77, 79, 82, 89, 90, 104, 105, 112, 115, 122, 132, 139, 142, 154, 157, 164, 170, 177, 187, 189, 192, 194, 199, 210, 215, 222, 230, 234, 244, 245, 255, 259, 265, 280, 282 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=(A145480(n)-1)/12`
	MATHEMATICA	`aa = {}; k = 37; Do[If[PrimeQ[(k + Prime[n])/2], AppendTo[aa, (Prime[n] - k)/12]], {n, 1, 500}]; aa`
	CROSSREFS	`A063908-A063913, A092109, A145471-A145490.` `Sequence in context: A118208 A074142 A059084 this_sequence A070677 A029584 A136255` `Adjacent sequences: A145487 A145488 A145489 this_sequence A145491 A145492 A145493`
	KEYWORD	`sign`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 11 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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