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.

A303738 Primes of form (2*k)! + k! - 1.

Original entry on oeis.org

2, 40343, 371993326789901217467999454553208905727999
Offset: 1

Views

Author

Muniru A Asiru, May 27 2018

Keywords

Comments

a(4) has 154 digits and is too large to be included.

Crossrefs

Programs

  • Maple
    f:=factorial: select(isprime,[seq(f(2*k)+f(k)-1,k=1..600)]);

Formula

a(n) = (2*A303737(n))! + A303737(n)! - 1.