A105445 - OEIS

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A105445

a(n) = the smallest prime p such that p+8 and q+8 are prime; q is the n-th prime after p.

3

3, 5, 3, 11, 11, 5, 3, 3, 59, 29, 11, 11, 5, 3, 3, 29, 5, 3, 11, 71, 5, 3, 5, 3, 29, 23, 11, 233, 5, 3, 23, 5, 3, 23, 11, 71, 5, 3, 59, 5, 3, 23, 173, 149, 131, 11, 23, 5, 3, 479, 11, 11, 5, 3, 3, 53, 71, 233, 71, 59, 53, 29, 23, 173, 191, 59, 11, 23, 5, 3, 53, 11, 29, 5, 3

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..75.

EXAMPLE

a(2)=5 because 5+8 and 11+8 are primes.

CROSSREFS

Cf. A105439, A105443, A105444.

Sequence in context: A309392 A089730 A351368 * A345014 A328878 A178095

Adjacent sequences: A105442 A105443 A105444 * A105446 A105447 A105448

KEYWORD

nonn

AUTHOR

Cino Hilliard, May 02 2005

EXTENSIONS

Edited by Don Reble, Jun 11 2007

STATUS

approved