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.

A063913 Primes p such that 2*p - 13 is also prime.

Original entry on oeis.org

13, 37, 43, 61, 97, 103, 127, 163, 181, 193, 211, 223, 277, 307, 313, 337, 373, 421, 433, 523, 541, 571, 607, 613, 631, 733, 751, 811, 853, 877, 883, 907, 937, 1021, 1033, 1051, 1063, 1087, 1117, 1153, 1201, 1303, 1381, 1423, 1483, 1531, 1567, 1597, 1621, 1657
Offset: 1

Views

Author

N. J. A. Sloane, Aug 31 2001

Keywords

Programs

  • Magma
    [n: n in [6..2000] | IsPrime(n) and IsPrime(2*n-13)]; // Vincenzo Librandi, Feb 02 2014
  • Mathematica
    Select[Prime[Range[5, 2000]], PrimeQ[2 # - 13]&] (* Vincenzo Librandi, Feb 02 2014 *)
  • PARI
    isok(p) = { isprime(p) && isprime(2*p - 13) } \\ Harry J. Smith, Sep 02 2009