A107372 Numbers n such that 103*n - 101 is prime.

1, 4, 10, 18, 24, 36, 40, 46, 60, 64, 70, 76, 78, 88, 96, 124, 136, 144, 150, 154, 168, 178, 180, 190, 208, 210, 216, 234, 238, 244, 246, 256, 264, 294, 298, 318, 330, 334, 340, 346, 360, 378, 384, 388, 418, 420, 426, 430, 438, 444, 456, 460, 480, 486, 498, 508

Offset

1,2

Comments

101 and 103 are twin primes.

Links

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

Chris Caldwell, The First 1,008 Twin Primes.

Example

If n=64, then 103*n - 101 = 6491 (prime).

Maple

a:=proc(n) if isprime(103*n-101)=true then n else fi end: seq(a(n), n=0..700); # Emeric Deutsch

Mathematica

Select[Range[600], PrimeQ[103#-101]&] (* Harvey P. Dale, Oct 03 2012 *)

Prog

(PARI) is(n)=isprime(103*n-101) \\ Charles R Greathouse IV, Jun 12 2017

Crossrefs

Sequence in context: A310557 A079287 A113804 * A113420 A053767 A225270

Adjacent sequences: A107369 A107370 A107371 * A107373 A107374 A107375

Keyword

nonn,easy

Author

Parthasarathy Nambi, May 24 2005

Extensions

More terms from Emeric Deutsch, Jun 13 2005

Status

approved