1,1

(PARI) for(n=1, 55, if(isprime(2*n!+1), print(2*n!+1)))

Sequence in context: A087170 A123370 A110407 this_sequence A128341 A028942 A074378

Adjacent sequences: A062695 A062696 A062697 this_sequence A062699 A062700 A062701

nonn

Jason Earls (zevi_35711(AT)yahoo.com), Jul 10 2001