id:A145488 - OEIS Search Results

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Numbers k such that 6k+7 is prime and 12k+1 is also prime

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0, 4, 5, 8, 14, 15, 19, 25, 28, 30, 33, 35, 44, 49, 50, 54, 60, 68, 70, 85, 88, 93, 99, 100, 103, 120, 123, 133, 140, 144, 145, 149, 154, 168, 170, 173, 175, 179, 184, 190, 198, 215, 228, 235, 245, 253, 259, 264, 268, 274, 275, 280, 285, 288, 294 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=(A145474(n)-1)/12`
	MATHEMATICA	`aa = {}; k = 13; 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: A101948 A087475 A019526 this_sequence A050892 A145265 A072808` `Adjacent sequences: A145485 A145486 A145487 this_sequence A145489 A145490 A145491`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 11 2008`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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