%I #8 Dec 15 2017 17:36:07
%S 2,5,3,61,7,25621,656410021,8874301,9137,1069,491,23,1031,17,19,41,
%T 197,311,1187,113,11,1249,
%U 650176342761734684441179196492094381946145205110026217821,13,43,89,239,56359,31732153,29,37,9109,907,6323,293,811,77806657
%N a(1) = 2, a(n+1) is smallest prime factor of (2 * Product_{k=1..n} a(k)) + 1.
%C Variation of the Euclid-Mullin sequence A000945.
%e a(5) is equal to 7 because 2*(2*5*3*61)+1 = 3661 = 7 * 523.
%Y Cf. A000945.
%K nonn
%O 1,1
%A _Jason Earls_, Nov 29 2002
%E a(26)-a(37) from _Robert Price_, Jul 20 2015