A132247 Twin primes congruent to {1, 11, 13, 17, 19, 29} mod 30.

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, 643

Offset: 1

Author

Omar E. Pol, Aug 18 2007

Keywords

• easy
• nonn

Comments

Twin primes that are greater than 7. - Omar E. Pol, Oct 31 2013

Links

• C. K. Caldwell, The Prime Pages
• C. K. Caldwell, Twin Primes
• Omar E. Pol, Prime numbers in a sieve with 30 columns
• Omar E. Pol, Sobre el patrón de los números primos

Crossrefs

Cf. A001097, A039949, A132230, A132232-A132234, A132236, A132238-A132246, A132248-A132259.

Formula

a(n) = A001097(n+3). - Michel Marcus, Nov 03 2013