cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A322302 Primes p such that 11*2^p + 1 is also prime.

Original entry on oeis.org

3, 5, 7, 19, 43, 127, 211, 15329, 28277, 3771821
Offset: 1

Views

Author

Vincenzo Librandi, Dec 20 2018

Keywords

Comments

Primes in A002261.

Crossrefs

Programs

  • GAP
    Filtered([1..1000], p -> IsPrime(p) and IsPrime(11*2^p+1)); # Muniru A Asiru, Dec 20 2018
  • Magma
    [p: p in PrimesUpTo (6000) | IsPrime(11*2^p+1)];
    
  • Maple
    select(p->isprime(p) and isprime(11*2^p+1),[$1..1000]); # Muniru A Asiru, Dec 20 2018
  • Mathematica
    Select[Prime[Range[1000]], PrimeQ[11 2^# + 1] &]

Extensions

a(10) from Joerg Arndt Dec 20 2018