A063106 Primes of form !n + 2n - 1.

2, 5, 17, 43, 887, 522956339, 20935051082417771847631371547939998232420940393

Offset: 1

Author

Jason Earls, Aug 08 2001

Keywords

• nonn

Crossrefs

Cf. A003422.

Programs

PARI

for(n=1,50,x=sum(k=0,n-1,k!)+(2*n-1); if(isprime(x),print(x)))