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 A146493 #2 Mar 30 2012 17:39:45
%S A146493 9,9,8,5,0,9,5,0,0,6,0,7,5,7,3,7,5,4,5,8,7,1,5,0,2,1,3,5,7,8,1,3,1,2,
%T A146493 7,7,8,4,8,2,0,9,9,3,2,9,9,6,8,6,2,1,5,9,0,3,6
%N A146493 Decimal expansion of Product_{q in A001358} (1-1/(q^4*(q-1))).
%C A146493 Semiprime analog of A065416.
%F A146493 The logarithm is -sum_{s>=2} sum_{j=1..floor[s/(1+r)]} binomial(s-r*j-1,j-1)*P_2(s)/j at r=4, where P_k(s) are the k-almost prime zeta functions of arXiv:0803.0900.
%e A146493 0.998509500607573754... = (1-1/768)*(1-1/6480)*(1-1/52488)*..
%K A146493 nonn,cons,less
%O A146493 0,1
%A A146493 _R. J. Mathar_, Feb 13 2009