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 A089425 #5 Mar 31 2012 14:02:17 %S A089425 1,1,1,3,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57 %N A089425 Least common multiple of all cycle sizes (and also the maximum cycle size) in range [A014137(n-1)..A014138(n-1)] of permutation A082351/A082352. %H A089425 A. Karttunen, <a href="/A089408/a089408.c.txt">C-program for computing the initial terms of this sequence</a> %Y A089425 Cf. A008585, A008486. %K A089425 nonn %O A089425 0,4 %A A089425 _Antti Karttunen_, Nov 29 2003