A114274 Numbers k such that k^2 + 11 is prime.

0, 6, 24, 30, 36, 54, 90, 96, 114, 120, 126, 144, 150, 180, 186, 204, 210, 234, 246, 270, 300, 324, 366, 390, 444, 456, 486, 504, 510, 564, 636, 654, 666, 684, 690, 720, 774, 780, 834, 846, 864, 930, 936, 954, 960, 984

Offset: 1

Author

Zak Seidov, Nov 19 2005

Keywords

• nonn

Links

• G. C. Greubel, Table of n, a(n) for n = 1..1000

Crossrefs

Other sequences of the type "Numbers k such that k^2 + i is prime": A005574 (i=1), A067201 (i=2), A049422 (i=3), A007591 (i=4), A078402 (i=5), A114269 (i=6), A114270 (i=7), A114271 (i=8), A114272 (i=9), A114273 (i=10), this sequence (i=11), A114275 (i=12).

Programs

Mathematica

lst={};k=11;Do[If[PrimeQ[n^2+k], (*Print[n];*)AppendTo[lst, n]], {n, 6!}];lst (* Vladimir Joseph Stephan Orlovsky, Aug 26 2008 *)

PARI

is(n)=isprime(n^2+11) \\ Charles R Greathouse IV, Jan 21 2015