A111312 Numbers n such that 11*n + 2 is prime.

0, 1, 7, 9, 15, 19, 21, 25, 37, 39, 49, 51, 55, 61, 67, 69, 75, 85, 97, 99, 109, 111, 117, 127, 135, 139, 141, 145, 147, 151, 169, 177, 181, 189, 201, 217, 219, 225, 229, 231, 237, 247, 249, 259, 265, 267, 277, 285, 289, 291, 301, 315, 319, 321, 331, 337, 345

Offset

1,3

Links

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Example

If n=135 then 11*n + 2 = 1487 (prime).

Mathematica

Select[Range[0, 400], PrimeQ[11#+2]&] (* Harvey P. Dale, Mar 22 2020 *)

Prog

(Magma) [n: n in [0..100000] |IsPrime(11*n + 2)] // Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(11*n+2) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Cf. A017413, A090187.

Sequence in context: A047522 A112072 A024902 * A357500 A158891 A213220

Adjacent sequences: A111309 A111310 A111311 * A111313 A111314 A111315

Keyword

nonn,easy

Author

Parthasarathy Nambi, Nov 03 2005

Status

approved