id:A082496 - OEIS Search Results

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Numbers of the form 2p+1, where p and p+2 are a pair of twin primes.

+0
2

7, 11, 23, 35, 59, 83, 119, 143, 203, 215, 275, 299, 359, 383, 395, 455, 479, 539, 563, 623, 695, 839, 863, 923, 1043, 1139, 1199, 1235, 1283, 1319, 1619, 1643, 1655, 1715, 1763, 2039, 2063, 2099, 2123, 2183, 2303, 2459, 2555, 2579, 2603, 2639, 2855, 2903 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`a(n) = 2A001359(n) + 1 = 2A006512(n) - 3 = A001359(n) + A006512(n) - 1`
	MATHEMATICA	`2Select[ Prime/@Range[ 250 ], PrimeQ[ #+2 ]& ]+1`
	CROSSREFS	`Cf. A001359, A006512.` `Equals A054735 - 1.` `Sequence in context: A095084 A067790 A089056 this_sequence A107133 A079138 A163848` `Adjacent sequences: A082493 A082494 A082495 this_sequence A082497 A082498 A082499`
	KEYWORD	`nonn`
	AUTHOR	`Vincenzo Origlio (vincenzo.origlio(AT)itc.cnr.it), Apr 29 2003`
	EXTENSIONS	`Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jun 20 2003`

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

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