A271347 Primes p such that p + 38 is also prime.

3, 5, 23, 29, 41, 59, 71, 89, 101, 113, 173, 191, 233, 239, 269, 293, 311, 359, 383, 401, 419, 449, 461, 503, 509, 563, 569, 593, 653, 701, 719, 773, 821, 839, 881, 929, 953, 971, 983, 1013, 1031, 1049, 1091, 1163, 1193, 1259, 1283, 1289

Offset

1,1

Comments

A134118 is a subsequence of this sequence.

Links

Karl V. Keller, Jr., Table of n, a(n) for n = 1..10000

Example

3 such that 3 + 38 = 41 is also prime.
5 such that 5 + 38 = 43 is also prime.

Mathematica

Select[Prime[Range[250]], PrimeQ[# + 38] &] (* Alonso del Arte, Apr 05 2016 *)

Prog

(Python)
from sympy import isprime
for i in range(3, 2001, 2):
..if isprime(i) and isprime(i+38): print (i, end=', ')
(PARI) lista(nn) = forprime(p=2, nn, if(ispseudoprime(p+38), print1(p, ", "))); \\ Altug Alkan, Apr 05 2016

Crossrefs

Cf. A000040, A134118.

Sequence in context: A271417 A270912 A137084 * A222424 A067256 A136891

Adjacent sequences: A271344 A271345 A271346 * A271348 A271349 A271350

Keyword

nonn

Author

Karl V. Keller, Jr., Apr 04 2016

Status

approved