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 A202369 #10 May 01 2014 02:44:23
%S A202369 1,30,1800,14742000,30073680000,49621572000000,812801349360000000,
%T A202369 707137173943200000000,2885119669688256000000000,
%U A202369 49833835369821036293760000000000,6742517925536786210545728000000000000
%N A202369 LCM of denominators of the coefficients of polynomials Q^(4)_m(n)defined by the recursion Q^(4)_0(n)=1; for m>=1,Q^(4)_m(n)=sum{i=1,...,n}i^4*Q^(4)_(m-1)(i).
%C A202369 See comment in A175669.
%Y A202369 Cf. A053657, A202367, A202368, A175669
%K A202369 nonn
%O A202369 1,2
%A A202369 _Vladimir Shevelev_ and _Peter J. C. Moses_, Dec 18 2011