A152484 - OEIS

%I #2 Mar 30 2012 17:35:01

%S 1,3,5,7,9,11,17,33

%N Odd numbers which are not the sum of an even semiprime and an odd semiprime.

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

%e 33 is in this sequence because no even semiprime and odd semiprime sum to 33. 35 is not in this sequence because the sum of 10 (even semiprime) and 25 (odd semiprime) is 35.

%Y Cf. A001358, A046315, A100484, A152482, A152483.

%K fini,nonn

%O 1,2

%A _Donovan Johnson_, Dec 06 2008