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Even numbers which are not the sum of 2 odd semiprimes.
2

%I #4 Oct 02 2023 11:08:11

%S 2,4,6,8,10,12,14,16,20,22,26,28,32,38,52,62

%N Even numbers which are not the sum of 2 odd semiprimes.

%C No more terms < 10^9. Conjectured to be complete.

%e 62 is in this sequence because no 2 odd semiprimes sum to 62. 64 is not in this sequence because the sum of 9 (odd semiprime) and 55 (odd semiprime) is 64.

%Y Cf. A118081, A046315, A152482, A152484.

%K fini,nonn

%O 1,1

%A _Donovan Johnson_, Dec 06 2008