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 A090951 #4 Mar 31 2012 23:01:22 %S A090951 1,2,6,12,60,420,840,2520,27720,360360,6126120,116396280,2677114440, %T A090951 13385572200,40156716600,1164544781400,36100888223400,144403552893600, %U A090951 5342931457063200,219060189739591200,9419588158802421600 %N A090951 LCM of the first n numbers of the form p^q, where p and q are 1 or prime. %C A090951 Is the sum of the series 1/a(n) transcendental? %e A090951 a(11) = 6126120 = 1*2*3*2*5*7*2*3*11*13*17. %Y A090951 Cf. A051451. %K A090951 easy,nonn %O A090951 1,2 %A A090951 _Russell Easterly_, Feb 26 2004 %E A090951 Edited and extended by _David Wasserman_, Mar 13 2006