id:A029708 - OEIS Search Results

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Numbers n such that n-2 and n+2 are consecutive primes.

+0
5

9, 15, 21, 39, 45, 69, 81, 99, 105, 111, 129, 165, 195, 225, 231, 279, 309, 315, 351, 381, 399, 441, 459, 465, 489, 501, 615, 645, 675, 741, 759, 771, 825, 855, 861, 879, 885, 909, 939, 969, 1011, 1089, 1095, 1215, 1281, 1299, 1305, 1425, 1431 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) = (A029710(n) + A031505(n+1))/2 = A029710(n) + 2 = A031505(n+1) - 2.`
	CROSSREFS	`Essentially the same as A087679.` `Sequence in context: A063174 A072569 A072572 this_sequence A125215 A102739 A124622` `Adjacent sequences: A029705 A029706 A029707 this_sequence A029709 A029710 A029711`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research