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A120345 Numbers n such that 2357*n + 1 is prime. 1
6, 14, 24, 26, 38, 50, 90, 104, 108, 110, 126, 164, 174, 176, 180, 188, 206, 230, 234, 236, 264, 266, 296, 306, 314, 320, 344, 350, 386, 390, 404, 408, 440, 470, 476, 488, 498, 516, 518, 534, 548, 570, 608, 618, 630, 636, 638, 680, 684, 698, 708, 716, 720 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..53.

EXAMPLE

If n=110 then 2357*n + 1 = 259271 (prime).

MATHEMATICA

Select[Range[1000], PrimeQ[2357*# + 1] &] (* Stefan Steinerberger, Jul 22 2006 *)

PROG

(MAGMA) [ n: n in [0..1500] | IsPrime(2357*n + 1) ] // Vincenzo Librandi, Jan 31 2011

(PARI) is(n)=isprime(2357*n+1) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Sequence in context: A084583 A022824 A005281 * A107400 A028557 A104675

Adjacent sequences:  A120342 A120343 A120344 * A120346 A120347 A120348

KEYWORD

nonn,less,easy

AUTHOR

Parthasarathy Nambi, Jun 24 2006

EXTENSIONS

More terms from Stefan Steinerberger, Jul 22 2006

STATUS

approved

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Last modified October 13 22:31 EDT 2019. Contains 327983 sequences. (Running on oeis4.)