%I #4 Mar 30 2012 16:47:09
%S 2,3,5,6,7,8,10,11,12,14,17,20,22,23,24,26,27,28,29,31,32,35,37,38,39,
%T 40,41,44,45,46,47,48,50
%N Nonsquares mod 51.
%K nonn,fini,full
%O 1,1
%A _N. J. A. Sloane_.