id:A112529 - OEIS Search Results

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Numbers n such that prime(n) +/- 2n are both primes.

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7, 9, 12, 24, 30, 36, 63, 90, 102, 117, 126, 135, 150, 156, 165, 171, 180, 183, 225, 234, 270, 285, 369, 390, 399, 402, 447, 456, 501, 507, 537, 570, 582, 624, 627, 642, 651, 654, 660, 720, 735, 762, 777, 855, 864, 870, 885, 930, 936, 945, 1023, 1029, 1035 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Cf. A064403: Prime(n) +/- n are both primes`
	MATHEMATICA	`Select[Range[2000], PrimeQ[Prime[ # ]+2# ]&&PrimeQ[Prime[ # ]-2# ]&]`
	CROSSREFS	`Cf. A064403.` `Sequence in context: A020720 A048589 A121056 this_sequence A161892 A056528 A055565` `Adjacent sequences: A112526 A112527 A112528 this_sequence A112530 A112531 A112532`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Sep 10 2005`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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