A171688 Twin primes > 3.

5, 7, 11, 13, 17, 19, 29, 31, 41, 43, 59, 61, 71, 73, 101, 103, 107, 109, 137, 139, 149, 151, 179, 181, 191, 193, 197, 199, 227, 229, 239, 241, 269, 271, 281, 283, 311, 313, 347, 349, 419, 421, 431, 433, 461, 463, 521, 523, 569, 571, 599, 601, 617, 619, 641

Offset: 1

Author

Juri-Stepan Gerasimov, Dec 15 2009

Keywords

• nonn
• less

Comments

Twin primes of the form 6n-1 or 6n+1. [From Juri-Stepan Gerasimov, May 12 2010]

Crossrefs

Cf. A001097.

Formula

a(n)=A001097(n+1).

Extensions

Edited by N. J. A. Sloane, Mar 17 2010