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 A317361 #9 Jul 26 2018 17:57:02 %S A317361 0,1,3,6,10,39,45,25,17,527,537,55,34,134,197,309,636,66,97,555,176, %T A317361 2100,285,4247,4499,155,8729,591,325,1144,1124,4379,211,2331,8534, %U A317361 8573,341,609,8482,225,1344,9418,4163,34510,357,780,239,2122,4583,1204,1544,2683,373,253,4211,654,45895,33400,2144 %N A317361 a(n) is the index of the first occurrence of n in A317359. %H A317361 Alois P. Heinz, <a href="/A317361/b317361.txt">Table of n, a(n) for n = 0..6244</a> %Y A317361 Cf. A317359. %K A317361 nonn %O A317361 0,3 %A A317361 _Altug Alkan_, Jul 26 2018