A132255 Isolated primes congruent to {17, 19} mod 30.

47, 79, 167, 257, 317, 379, 409, 439, 467, 499, 557, 587, 647, 677, 709, 739, 769, 797, 887, 919, 947, 977, 1009, 1039, 1069, 1097, 1129, 1187, 1217, 1249, 1307, 1367, 1399, 1459, 1549, 1579, 1637, 1759, 1847, 1907, 2179, 2207, 2297

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

C. K. Caldwell, The Prime Pages.

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

Mathematica

Select[Prime[Range[500]], NoneTrue[#+{2, -2}, PrimeQ]&&MemberQ[{17, 19}, Mod[#, 30]]&]

Crossrefs

Cf. A007510, A074822, A078857.

Sequence in context: A347695 A132257 A240583 * A142041 A190799 A246873

Adjacent sequences: A132252 A132253 A132254 * A132256 A132257 A132258

Keyword

easy,nonn

Author

Omar E. Pol, Aug 20 2007

Status

approved