A102721 - OEIS

A102721

Numbers n such that 11*n + 13 is prime.

0, 6, 8, 14, 18, 20, 24, 36, 38, 48, 50, 54, 60, 66, 68, 74, 84, 96, 98, 108, 110, 116, 126, 134, 138, 140, 144, 146, 150, 168, 176, 180, 188, 200, 216, 218, 224, 228, 230, 236, 246, 248, 258, 264, 266, 276, 284, 288, 290, 300, 314, 318

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OFFSET

1,2

LINKS

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

EXAMPLE

If n=0, then 11*0 + 13 = 13 (prime).

If n=50, then 11*50 + 13 = 563 (prime).

If n=108, then 11*108 + 13 = 1201 (prime).

MATHEMATICA

For[n = 1, n < 320, n++, If[PrimeQ[11*n + 13], Print[n]]] (* Stefan Steinerberger, Feb 15 2006 *)

Select[Range[0, 400, 2], PrimeQ[11#+13]&] (* Harvey P. Dale, Dec 23 2017 *)

PROG

(PARI) is(n)=isprime(11*n+13) \\ Charles R Greathouse IV, Jun 12 2017

CROSSREFS

Sequence in context: A315890 A315891 A101123 * A315892 A315893 A315894

Adjacent sequences: A102718 A102719 A102720 * A102722 A102723 A102724

KEYWORD

nonn,easy

AUTHOR

Parthasarathy Nambi, Feb 06 2005

EXTENSIONS

More terms from Stefan Steinerberger, Feb 15 2006

STATUS

approved