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 A181674 #11 Mar 09 2022 09:27:35 %S A181674 0,0,0,0,1,1,1,1,0,2,2,2,0,0,2,3,1,0,0,1,1,1,2,1,0,1,3,2,0,0,1,1,0,2, %T A181674 2,3,1,0,3,4,2,0,0,2,2,0,1,1,0,1,2,3,1,0,2,2,2,1,2,1,1,0,3,3,1,1,1,2, %U A181674 1,1,2,0,0,0,2,2,0,1,2,1,1,0,2,1,1,1,3,4,1,0,1,3,2,1,3,2,2,0,2,1,1,0,0,1,0 %N A181674 Number of partitions of n into a primorial and a semiprime. %C A181674 Number of ways of writing n=k+m where k primorial and m semiprime. The number of decompositions of n into an unordered sum of primorial number and semiprime number. %C A181674 Conjecture: Average order is Theta(log log n). - _Charles R Greathouse IV_, May 25 2011 %e A181674 a(10)=2 because 10 = 6(primorial)+4(semiprime) = 1(primorial)+9(semiprime). %Y A181674 Cf. A001358, A002110, A100949, A175933. %K A181674 nonn %O A181674 1,10 %A A181674 _Juri-Stepan Gerasimov_, Nov 04 2010