A132242 Twin primes congruent to {17, 19} mod 30.

17, 19, 107, 109, 137, 139, 197, 199, 227, 229, 347, 349, 617, 619, 827, 829, 857, 859, 1277, 1279, 1427, 1429, 1487, 1489, 1607, 1609, 1667, 1669, 1697, 1699, 1787, 1789, 1877, 1879, 1997, 1999, 2027, 2029, 2087, 2089, 2237, 2239, 2267, 2269, 2657, 2659

Offset

1,1

Links

Roger L. Bagula, Table of n, a(n) for n = 1..130

C. K. Caldwell, The Prime Pages.

C. K. Caldwell, Twin Primes.

Omar E. Pol, Determinacion geometrica de los numeros primos y perfectos.

Mathematica

a[0] = 7; a[n_] := a[n] = a[n - 1] + 10; Flatten[Table[If[PrimeQ[a[n]] && PrimeQ[a[n] + 2], {a[n], a[n] + 2}, {}], {n, 0, 1000}]] (* Roger L. Bagula, May 04 2008 *)

Crossrefs

Cf. A001097, A001359, A006512, A039949.

Cf. A132243, A132241.

Sequence in context: A028489 A210242 A165320 * A162873 A174379 A178424

Adjacent sequences: A132239 A132240 A132241 * A132243 A132244 A132245

Keyword

easy,nonn

Author

Omar E. Pol, Aug 15 2007

Extensions

More terms from Roger L. Bagula, May 04 2008

Status

approved