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 A031293 #11 Jul 13 2013 12:01:55 %S A031293 6,23,43,63,83,103,110,112,114,116,118,120,122,123,124,126,128,143, %T A031293 163,183,210,240,270,300,330,360,371,374,377,380,383,386,389,390,392, %U A031293 395,398,420,450,480,510,540,570,600,630,660,671 %N A031293 Position of n-th 6 in A007376. %C A031293 A007376(a(n)) = 6. %H A031293 Reinhard Zumkeller, <a href="/A031293/b031293.txt">Table of n, a(n) for n = 1..10000</a> %o A031293 (Haskell) %o A031293 import Data.List (elemIndices) %o A031293 a031293 n = a031293_list !! (n-1) %o A031293 a031293_list = map (+ 1) $ elemIndices 6 a007376_list %o A031293 -- _Reinhard Zumkeller_, Jul 28 2011 %Y A031293 Cf. A193428, A031287, A031288, A031289, A031290, A031291, A031292, A031294, A031295, A031296. %K A031293 nonn,less,base %O A031293 1,1 %A A031293 _Clark Kimberling_