A124192 Numbers k for which 8*k + 3 and 8*k + 5 are twin primes.

0, 1, 7, 13, 22, 28, 43, 52, 82, 103, 127, 136, 178, 181, 202, 208, 223, 241, 253, 283, 292, 406, 412, 421, 433, 442, 481, 502, 511, 532, 568, 598, 616, 637, 706, 733, 766, 787, 832, 847, 853, 868, 901, 913, 916, 943

Offset: 1

Author

Artur Jasinski, Dec 10 2006

Keywords

• nonn

Examples

			0 is a term since 8*0 + 3 = 3 and 8*0 + 5 = 5 are twin primes.
		

Links

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

Crossrefs

Cf. A001109, A125821, A125822.

Programs

Magma

[k:k in [0..1000]|IsPrime(8*k+3) and IsPrime(8*k+5)]; // Marius A. Burtea, Dec 19 2019

Mathematica

Do[If[PrimeQ[8n + 3] && PrimeQ[8n + 5], Print[n]], {n, 1, 1000}]

Extensions

a(1) inserted by Amiram Eldar, Dec 19 2019