A109603 Numbers n such that 43*n - 41 is prime.

1, 4, 10, 16, 18, 24, 28, 30, 54, 60, 64, 66, 70, 78, 84, 94, 100, 106, 108, 114, 120, 136, 144, 148, 154, 180, 196, 204, 214, 220, 226, 238, 250, 264, 268, 276, 288, 294, 318, 330, 334, 336, 348, 360, 376, 390, 394, 396, 400, 406, 414

Offset

1,2

Links

Table of n, a(n) for n=1..51.

Example

If n=1 then 43*n - 41 = 2 (prime).
If n=94 then 43*n - 41 = 4001 (prime).

Mathematica

Select[Range[500], PrimeQ[(43# - 41)] &] (* Stefan Steinerberger, Feb 28 2006 *)

Prog

(PARI) is(n)=isprime(43*n-41) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Sequence in context: A119409 A310476 A310477 * A310478 A310479 A310480

Adjacent sequences: A109600 A109601 A109602 * A109604 A109605 A109606

Keyword

nonn,easy

Author

Parthasarathy Nambi, Jul 30 2005

Extensions

More terms from Stefan Steinerberger, Feb 28 2006

Status

approved