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 A046793 #6 Mar 30 2012 18:35:36 %S A046793 2,4,3,6,12,8,4,6,15,12,10,14,5,16,18,8,12,35,6,28,24,15,21,26,20,12, %T A046793 40,10,7,32,63,60,34,24,21,36,90,16,38,45,8,36,70,12,15,46,20,99,18, %U A046793 30,9,42,52,40,54,33,24,30,58,75,66,20,14,62,55,105,10,64,39,28,18,50,68,48,33 %N A046793 Numbers n such that arithmetic and harmonic means of a(n) and A005279(n) both integers. %K A046793 nonn %O A046793 1,1 %A A046793 _David W. Wilson_