id:A108472 - OEIS Search Results

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Numbers n such that 4*prime(n)+prime(n+1) is prime.

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1, 2, 15, 16, 18, 23, 32, 36, 51, 55, 56, 58, 74, 86, 91, 96, 97, 99, 100, 102, 105, 108, 110, 111, 119, 123, 130, 133, 164, 174, 185, 187, 199, 200, 203, 208, 214, 219, 232, 239, 252, 257, 260, 263, 272, 280, 284, 291, 298, 300, 305, 311, 312, 339, 342, 356 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Complement to A108473.`
	MATHEMATICA	`ra=Range[500]; cnd=PrimeQ[4*Prime[ # ]+Prime[ #+1]]&; se=Select[ra, cnd]`
	CROSSREFS	`Cf. A108473.` `Sequence in context: A077518 A102101 A037312 this_sequence A039771 A032934 A114606` `Adjacent sequences: A108469 A108470 A108471 this_sequence A108473 A108474 A108475`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Jun 04 2005`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research