A049490 a(n) and a(n)+64 both prime.

3, 7, 19, 37, 43, 67, 73, 103, 109, 127, 163, 193, 199, 229, 283, 337, 367, 379, 397, 439, 457, 499, 523, 577, 613, 619, 709, 733, 757, 823, 877, 883, 907, 919, 967, 997, 1033, 1039, 1087, 1117, 1123, 1129, 1153, 1213, 1237, 1297, 1303, 1423, 1429, 1447

Offset

1,1

Links

Zak Seidov, Table of n, a(n) for n = 1..1000

Example

19 and 19+64=83 both prime.

Mathematica

Select[Prime[Range[300]], PrimeQ[#+64]&] (* Harvey P. Dale, Mar 21 2011 *)

Prog

(PARI) select(p -> isprime(p+64), primes(1000)) \\ Edward Jiang, Sep 05 2014

Crossrefs

Cf. A001359, A023200, A023202.

Sequence in context: A113916 A227502 A268065 * A112391 A127928 A298125

Adjacent sequences: A049487 A049488 A049489 * A049491 A049492 A049493

Keyword

nonn

Author

Labos Elemer

Status

approved