id:A096477 - OEIS Search Results

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Numbers n such that prime[1+prime[n]-prime[prime[n]]=A073124[n]=2; subscripts for "secondary twin-primes".

+0
6

1, 2, 3, 4, 6, 7, 13, 14, 23, 24, 29, 30, 40, 59, 63, 65, 71, 74, 90, 103, 106, 110, 112, 117, 122, 128, 132, 187, 188, 193, 207, 248, 257, 258, 267, 271, 281, 285, 292, 296, 299, 300, 303, 304, 311, 317, 325, 340, 343, 344, 354, 356, 360, 368, 382, 389, 395, 402 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`n = 24 means that p[1+p[24]]-p[p[24]] = p[1+89]-p[89] = 463-461 = 2`
	MATHEMATICA	`Flatten[Position[Table[Prime[Prime[n]+1]-Prime[Prime[n]], {n, 1, 1000}], 2]]`
	CROSSREFS	`Cf. A072677, A006450, A073124.` `Sequence in context: A057732 A092591 A039947 this_sequence A039059 A073639 A130776` `Adjacent sequences: A096474 A096475 A096476 this_sequence A096478 A096479 A096480`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jun 23 2004`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

AT&T Labs Research