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 A233437 #5 Dec 21 2013 03:43:16 %S A233437 1,2,4,8,18,39,85,191,425,940,2185,5183,12814,32711,84715,218141, %T A233437 555741,1376723,3457106,9544621,26048861,72830491,202468765,591526393, %U A233437 1717701641,4994058475,14800573301,44137423952,133960953399,413431218250,1247184175056,3842131894125 %N A233437 Floor(Primorial(n) / compositorial(n)), that is, floor(A002110(n) / A036691(n)). %F A233437 a(n) = floor(A002110(n) / A036691(n)). %o A233437 (PARI) a(n)=my(c,p,N);N=n;c=4;p=1;while(n>0,if(!isprime(c),p=p*c;n=n-1);c=c+1);floor(prod(i=1,N,prime(i))/p) \\ _Ralf Stephan_, Dec 21 2013 %Y A233437 Cf. A002110, A036691. %K A233437 nonn %O A233437 12,2 %A A233437 _Alex Ratushnyak_, Dec 09 2013