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%I #5 Jan 13 2017 06:33:08
%S 2,3,5,6,7,10,11,12,14,15,18,19,20,22,23,24,26,27,28,29,30,31,34,35,
%T 37,38,39,40,41,42,43,44,45,46,47,48,50,51,54,55,56,57,58,59,61,62,63,
%U 65,66,67
%N Nonsquares mod 68.
%K nonn,fini,full
%O 1,1
%A _N. J. A. Sloane_.
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