A125971 Numbers k for which k^14+k^13-1 is prime.

6, 9, 11, 21, 29, 33, 36, 49, 64, 66, 68, 80, 110, 113, 144, 240, 266, 270, 309, 348, 365, 366, 394, 426, 438, 459, 471, 474, 479, 485, 501, 548, 553, 570, 593, 660, 684, 699, 704, 725, 729, 743, 783, 798, 801, 809, 815, 820, 824, 833, 841, 891, 900, 931, 968

Offset

1,1

Links

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

Mathematica

Do[If[PrimeQ[x^14 + x^13 - 1], Print[x]], {x, 1, 600}]

Prog

(PARI) is(n)=isprime(n^14+n^13-1) \\ Charles R Greathouse IV, May 15 2013

Crossrefs

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

Sequence in context: A131834 A084418 A226133 * A322158 A143710 A087022

Adjacent sequences: A125968 A125969 A125970 * A125972 A125973 A125974

Keyword

nonn

Author

Artur Jasinski, Dec 14 2006

Extensions

More terms from Amiram Eldar, Mar 18 2020

Status

approved