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 A126293 #4 Apr 12 2023 08:10:24 %S A126293 1,1,2,6,12,780,27720,47785500,160430026680,19702100764977190560, %T A126293 1389717843080061549600,689103351818617666941410400, %U A126293 3910098498311750671529113672239956967773312909280 %N A126293 Least common multiple of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of permutation A125985/A125986. %Y A126293 Cf. A014137, A014138, A125985, A125986, A126297. %K A126293 nonn %O A126293 0,3 %A A126293 _Antti Karttunen_, Jan 02 2007