A125969 Numbers k for which k^12+k^11-1 is prime.

2, 5, 9, 10, 11, 12, 13, 24, 30, 31, 48, 49, 60, 61, 71, 85, 96, 104, 131, 132, 147, 167, 175, 185, 191, 198, 204, 218, 226, 242, 269, 305, 323, 340, 385, 386, 406, 437, 471, 500, 526, 534, 549, 570, 576, 591, 592, 609, 633, 660, 670, 676, 680, 690, 697, 713, 752

Offset: 1

Author

Artur Jasinski, Dec 14 2006

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000040, A045546, A125881-A125885, A125965-A125973.

Programs

Mathematica

Do[If[PrimeQ[x^12 + x^11 - 1], Print[x]], {x, 1, 400}]
Select[Range[800],PrimeQ[#^12+#^11-1]&] (* Harvey P. Dale, Nov 08 2022 *)

PARI

is(n)=isprime(n^12+n^11-1) \\ Charles R Greathouse IV, May 15 2013

Extensions

More terms from Amiram Eldar, Mar 18 2020