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Nonsquares mod 67.
0

%I #4 Mar 30 2012 16:47:09

%S 2,3,5,7,8,11,12,13,18,20,27,28,30,31,32,34,38,41,42,43,44,45,46,48,

%T 50,51,52,53,57,58,61,63,66

%N Nonsquares mod 67.

%K nonn,fini,full

%O 1,1

%A _N. J. A. Sloane_.