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 A275243 #7 Jul 24 2016 10:24:03 %S A275243 13,21,44,56,100,108,270,450,560,576,600,1584,1848,2100,3240,4320, %T A275243 9072,9900,11088,14040,16800,28080,39600,40320,80640,92400,141120, %U A275243 143640,171360,287280,383040,453600,471240,900900,1028160,1053360,1670760,1995840,2106720 %N A275243 Highly composite numbers of class 5 (see comment in A275239). %Y A275243 Cf. A002182, A275239, A275240, A275241, A275242. %K A275243 nonn %O A275243 1,1 %A A275243 _Vladimir Shevelev_ and _Peter J. C. Moses_, Jul 21 2016