A139534 Numbers k such that numbers 24*k + 17 and 24*k + 19 are twin primes.

0, 1, 5, 11, 21, 23, 25, 26, 33, 35, 36, 43, 53, 61, 70, 71, 86, 88, 110, 113, 116, 123, 135, 138, 163, 166, 168, 175, 176, 180, 186, 193, 196, 208, 225, 226, 235, 243, 253, 268, 273, 278, 281, 310, 333, 355, 373, 376, 386, 410, 413, 435, 438, 453, 455, 460, 478

Offset

1,3

Links

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

Mathematica

a = {}; Do[If[PrimeQ[24 n + 17] && PrimeQ[24 n + 19], AppendTo[a, n]], {n, 0, 2000}]; a

Prog

(Magma) [k:k in [0..500]|IsPrime(24*k + 17) and IsPrime(24*k + 19)]; // Marius A. Burtea, Dec 31 2019

Crossrefs

Cf. A137920, A139404, A139533.

Sequence in context: A118375 A225376 A099400 * A245773 A372906 A166480

Adjacent sequences: A139531 A139532 A139533 * A139535 A139536 A139537

Keyword

nonn

Author

Artur Jasinski, Apr 25 2008

Status

approved