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 A138708 #4 Mar 30 2012 18:51:00 %S A138708 1,11,13,17,19,21,23,27,29,31,37,41,43,47,49,51,53,57,59,61,67,71,73, %T A138708 79,81,83,87,89,91,97,101,103,107,109,111,113,117,119,121,127,131,133, %U A138708 137,139,141,143,149,151,157,161,163,167,169,171,173,177,179,181,187,191 %N A138708 Numbers m such that A138707(m) = 1. %C A138708 Digits of a(n) greater than 0 are coprime to a(n); %C A138708 A138707(a(n)) = 1; A061116 is a subsequence. %H A138708 R. Zumkeller, <a href="/A138708/b138708.txt">Table of n, a(n) for n = 1..1000</a> %K A138708 nonn %O A138708 1,2 %A A138708 _Reinhard Zumkeller_, Mar 26 2008