A108725 Numbers n such that 11*n + 19 is prime.

0, 2, 8, 12, 14, 20, 24, 30, 44, 48, 50, 54, 62, 72, 78, 90, 92, 98, 104, 110, 122, 128, 132, 134, 140, 150, 162, 164, 168, 170, 174, 180, 188, 192, 194, 212, 218, 230, 234, 240, 252, 258, 260, 272, 282, 288, 290, 294, 300, 308, 318, 320, 324, 332, 344, 348, 362

Offset

1,2

Comments

All terms must be even. - Harvey P. Dale, Jan 05 2019

Links

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

Example

If n=0, then 11*n + 19 = 19 (prime).
If n=48, then 11*n + 19 = 547 (prime).

Maple

a:=proc(n) if isprime(11*n+19)=true then n else fi end: seq(a(n), n=0..400); # Emeric Deutsch, Jul 04 2005

Mathematica

Select[Range[0, 400, 2], PrimeQ[ 11#+19]&] (* Harvey P. Dale, Jan 05 2019 *)

Prog

(PARI) is(n)=isprime(11*n+19) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Cf. A108233.

Cf. A017485, A141855.

Sequence in context: A080058 A005796 A086173 * A277568 A108059 A276932

Adjacent sequences: A108722 A108723 A108724 * A108726 A108727 A108728

Keyword

nonn,easy

Author

Parthasarathy Nambi, Jun 21 2005

Extensions

More terms from Emeric Deutsch, Jul 04 2005

Status

approved