1,1

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

Cf. A003422.

Sequence in context: A076076 A136194 A056304 this_sequence A096295 A074494 A051438

Adjacent sequences: A063103 A063104 A063105 this_sequence A063107 A063108 A063109

nonn

Jason Earls (zevi_35711(AT)yahoo.com), Aug 08 2001