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 A146487 #3 Mar 30 2012 17:39:45 %S A146487 9,9,6,5,9,8,9,2,7,4,8,0,2,4,1,2,7,3,4,1,9,1,5,9,0,4,6,3,2,9,8,9,4,6, %T A146487 9,2,2,9,1,0,1,0,3,9,1,0,1,1,7,8,3,8,2,0,6,5,8 %N A146487 Decimal expansion of Product_{q in A014612} (1-1/(q^2*(q-1))). %C A146487 3-almost prime analog of A065414. %H A146487 R. J. Mathar, <a href="http://arxiv.org/abs/0903.2514">Hardy-Littlewood constants embedded into infinite products over all positive integers</a>, arXiv:0903.2514 [math.NT], table 3 at r=2, k=3. [From _R. J. Mathar_, Mar 28 2009] %F A146487 The logarithm is -sum_{s>=2} sum_{j=1..floor[s/(1+r)]} binomial(s-r*j-1,j-1)*P_3(s)/j at r=2, where P_k(s) are the k-almost prime zeta functions of arXiv:0803.0900. %e A146487 0.99659892748024127.. = (1-1/448)*(1-1/1584)*(1-1/5508)*(1-1/7600)*.. %K A146487 nonn,cons,less %O A146487 0,1 %A A146487 _R. J. Mathar_, Feb 13 2009