%I #4 Mar 30 2012 18:51:00
%S 0,1,4,6,7,8,9,10,12,13,14,15,16,17,18,19,20,21,22,24,25,26,27,28,30,
%T 31,32,33,34,35,36,37,38,39,40,42,43,44,45,46,47,48,49,50,51,52,54,55,
%U 56,57,58,59,60,61,62,63,64,65,66,67,68
%N Numbers that are not Sophie Germain primes.
%C Nonnegative integers that are not in A005384.
%C A156660(a(n)) = 0; A053176 is a subsequence. [From _Reinhard Zumkeller_, Feb 18 2009]
%Y Cf. A001690, A005384, A053176, A062289, A138888, A138889, A138890, A138891.
%K easy,nonn
%O 0,3
%A _Omar E. Pol_, Apr 05 2008
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