A210364 Prime numbers p such that x^2 + x + p produces primes for x = 0..5 but not x = 6.

1607, 3527, 13901, 31247, 33617, 55661, 68897, 97367, 166841, 195731, 221717, 347981, 348431, 354371, 416387, 506327, 548831, 566537, 929057, 954257, 1246367, 1265081, 1358801, 1505087, 1538081, 1595051, 1634441, 1749257, 2200811, 2322107, 2641547, 2697971

Offset: 1

Author

T. D. Noe, Apr 05 2012

Keywords

• nonn

Comments

The first term is A164926(6).

Links

• T. D. Noe, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A067774, A164926, A210360, A210361, A210362, A210363, A210365.

Programs

Mathematica

lookfor = 6; t = {}; n = 0; While[Length[t] < 50, n++; c = Prime[n]; i = 1; While[PrimeQ[i^2 + i + c], i++]; If[i == lookfor, AppendTo[t, c]]]; t