A114273 Numbers k such that k^2 + 10 is prime.

1, 3, 7, 11, 13, 27, 31, 39, 49, 53, 57, 59, 71, 77, 81, 83, 91, 97, 99, 101, 123, 127, 129, 141, 151, 157, 161, 169, 171, 179, 181, 189, 207, 209, 211, 223, 227, 237, 239, 249, 253, 291, 311, 319, 333, 343, 363, 367, 379, 393, 403, 413, 423, 427, 437, 447, 449

Offset: 1

Author

Zak Seidov, Nov 19 2005

Keywords

• nonn

Links

• G. C. Greubel, Table of n, a(n) for n = 1..1500

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), this sequence (i=10), A114274 (i=11), A114275 (i=12).

Programs

Mathematica

lst={}; Do[If[PrimeQ[n^2+10], AppendTo[lst, n]], {n, 600}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 26 2008 *)

PARI

is(n)=isprime(n^2+10) \\ Charles R Greathouse IV, Jan 21 2015