id:A139221 - OEIS Search Results

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Numbers n such that both 41+(n+n^2)/2 and 41+(n+n^2) are primes.

+0
3

0, 3, 11, 20, 23, 27, 32, 39, 48, 51, 59, 60, 83, 108, 111, 116, 128, 132, 135, 171, 188, 203, 212, 227, 240, 263, 275, 315, 324, 356, 359, 363, 384, 392, 447, 476, 479, 515, 528, 588, 627, 647, 648, 672, 731, 759, 780, 804, 839, 864, 875, 900, 903, 968, 975 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Intersection of A139220 and A056561.`
	MATHEMATICA	`Select[Table[Range[0, 2000]], PrimeQ[41+(#+#^2)/2]&&PrimeQ[41+#+#^2]&]`
	CROSSREFS	`Cf. A000217, A056561, A139219, A139220.` `Sequence in context: A082628 A166096 A139220 this_sequence A006876 A031239 A088619` `Adjacent sequences: A139218 A139219 A139220 this_sequence A139222 A139223 A139224`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Apr 11 2008`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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