%I #13 Nov 23 2015 01:26:20
%S 2,3,5,7,11,13,17,3371,64709
%N Primes at which cusp form Delta_20 is not ordinary.
%H Fernando Q. GouvĂȘa, <a href="http://projecteuclid.org/euclid.em/1047920420">Non-ordinary primes: a story</a>, Experimental Mathematics, Volume 6, Issue 3 (1997), 195-205.
%K nonn
%O 0,1
%A _N. J. A. Sloane_