A108030 Numbers k such that 151*k + 149 is prime.

0, 20, 30, 42, 44, 50, 60, 62, 78, 98, 102, 110, 120, 128, 144, 158, 162, 170, 174, 180, 182, 188, 194, 198, 210, 240, 242, 252, 258, 260, 264, 272, 294, 302, 314, 348, 350, 368, 380, 392, 404, 408, 432, 450, 462, 470, 482, 492, 498

Offset

1,2

Comments

149 and 151 are twin primes.

Links

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

Chris Caldwell, The First 1,008 Twin Primes.

Example

If k=98 then 151*k + 149 = 14947 (prime).

Mathematica

Select[Range[0, 500], PrimeQ[151*# + 149] &] (* Stefan Steinerberger, Mar 03 2006 *)

Prog

(PARI) is(n)=isprime(151*n+149) \\ Charles R Greathouse IV, Jun 06 2017

Crossrefs

Sequence in context: A216603 A166730 A109944 * A095787 A198471 A120145

Adjacent sequences: A108027 A108028 A108029 * A108031 A108032 A108033

Keyword

nonn,easy

Author

Parthasarathy Nambi, May 31 2005

Extensions

More terms from Stefan Steinerberger, Mar 03 2006

Status

approved