%I A103319
%S A103319 3,7,39916801,13763753091226345046315979581580902400000001,
%T A103319 33452526613163807108170062053440751665152000000001,
%U A103319 4470115461512684340891257138125051110076800700282905015819080092370422104067183317016903680000000000000001
%N A103319 Primes of the form p! + 1 where p is prime.
%C A103319 The values of p are 2, 3, 11, 37, 41, 73 which is A093804 (with a different 
               definition). Subsequence of A088332 (primes of the form n! + 1).
%D A103319 R. K. Guy, Unsolved Problems in Number Theory, Section A2.
%H A103319 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               FactorialPrime.html">Factorial Prime</a>
%H A103319 <a href="Sindx_Fa.html#factorial">Index entries for sequences related 
               to factorial numbers.</a>
%e A103319 2 and 2! + 1 = 3 are prime, so 3 is a member.
%Y A103319 Cf. A093804, A002981, A088332, A103318.
%Y A103319 Sequence in context: A083461 A137029 A137125 this_sequence A153021 A155979 
               A120669
%Y A103319 Adjacent sequences: A103316 A103317 A103318 this_sequence A103320 A103321 
               A103322
%K A103319 hard,nonn
%O A103319 1,1
%A A103319 Jonathan Sondow (jsondow(AT)alumni.princeton.edu), Jan 31 2005