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 A115628 #3 Mar 31 2012 13:21:30
%S A115628 1,0,1,2,1,2,0,1,2,1,1,2,1,0,1,5,1,0,1,3,3,0,1,4,2,1,1,4,2,1,0,1,5,3,
%T A115628 1,0,1,5,3,1,0,0,1,6,3,0,1,0,1,5,3,1,1,0,1,9,3,1,1,0,1,9,3,1,1,0,0,1,
%U A115628 8,5,1,1,0,0,1,8,5,1,1,0,0,0,1,10,4,2,1,0,0,0,1,9,5,1,2,0,0,0,1,10,5,1,1,1
%N A115628 Factorization of n! into primorials.
%C A115628 Factorial of n has a unique representation as a product of primorials: n! = 2#^T(n,1)*3#^T(n,2)*...*P_{Pi(n)}#^T(n,Pi(n)).
%F A115628 T(n, k) = A115727(n, k)-A115727(n, k+1).
%e A115628 Rows start: 1; 0,1; 2,1; 2,0,1; 2,1,1; 2,1,0,1; 5,1,0,1; 3,3,0,1.
%Y A115628 Cf. A115627, A000142, A002110. Row lengths are A000720.
%K A115628 nonn,tabf
%O A115628 2,4
%A A115628 _Franklin T. Adams-Watters_, Jan 26 2006