A111226 Numbers n such that 5*n + 12 is prime.

1, 5, 7, 11, 17, 19, 23, 25, 29, 31, 37, 43, 49, 53, 59, 61, 65, 67, 71, 77, 89, 91, 95, 107, 109, 113, 115, 119, 121, 127, 133, 143, 149, 155, 157, 163, 169, 173, 175, 179, 185, 187, 191, 193, 197, 215, 217, 221, 235, 241, 245, 253, 257, 259, 263, 271, 283, 287

Offset

1,2

Links

Table of n, a(n) for n=1..58.

Example

If n=109 then 5*n + 12 = 557 (prime).

Mathematica

Select[Range[300], PrimeQ[5 # + 12] &]

Prog

(Magma) [n: n in [0..100000] |IsPrime(5*n+12)] - Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(5*n+12) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Cf. A024894, A087505, A024897, A081759.

Sequence in context: A189320 A107448 A147853 * A168224 A084197 A180952

Adjacent sequences: A111223 A111224 A111225 * A111227 A111228 A111229

Keyword

nonn,easy

Author

Parthasarathy Nambi, Oct 26 2005

Status

approved