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A082496 Numbers of the form 2p+1, where p and p+2 are a pair of twin primes. 1
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; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

Eric Weisstein's World of Mathematics, Twin Primes

FORMULA

a(n) = 2*A001359(n) + 1 = 2*A006512(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: A210981 A255769 A175625 * A239733 A265768 A210001

Adjacent sequences: A082493 A082494 A082495 * A082497 A082498 A082499

KEYWORD

nonn

AUTHOR

Vincenzo Origlio (vincenzo.origlio(AT)itc.cnr.it), Apr 29 2003

EXTENSIONS

Edited by Dean Hickerson, Jun 20 2003

STATUS

approved

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Last modified December 7 22:27 EST 2022. Contains 358671 sequences. (Running on oeis4.)