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A088185 Numbers which are not the sum of two coprime semiprimes. 2

%I #3 Mar 30 2012 18:50:38

%S 1,2,3,4,5,6,7,8,9,10,11,12,14,15,16,17,18,20,21,22,24,26,27,28,30,32,

%T 33,36,38,40,42,45,48,50,52,54,56,60,62,66,70,72,78,80,84,90,96,105,

%U 108,110,120,126,132,138,140,150,180,210

%N Numbers which are not the sum of two coprime semiprimes.

%C A088183(a(n))=0; complement of A088184;

%C is this sequence finite/full? See conjecture in A072966.

%Y Cf. A072966, A001358.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Sep 22 2003

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)