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 A023100 #5 Mar 30 2012 18:35:18 %S A023100 800,113967,14990,256938,389316,4290,5132,66120,32,8075,11736,304095, %T A023100 720,13386,18656,507173,19632,75,56784,860544,40,47444,71040,69905, %U A023100 1262432,102795,136,181300,94068,139009,2910458,64350,5520,2214,97680,215,216964 %N A023100 a(n) is least k such that k and 8k are anagrams in base n (written in base 10). %K A023100 nonn,base %O A023100 9,1 %A A023100 _David W. Wilson_