This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A152483 #4 Oct 02 2023 11:08:11 %S A152483 2,4,6,8,10,12,14,16,20,22,26,28,32,38,52,62 %N A152483 Even numbers which are not the sum of 2 odd semiprimes. %C A152483 No more terms < 10^9. Conjectured to be complete. %e A152483 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 A152483 Cf. A118081, A046315, A152482, A152484. %K A152483 fini,nonn %O A152483 1,1 %A A152483 _Donovan Johnson_, Dec 06 2008