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 A050113 #6 Aug 06 2021 07:47:40 %S A050113 1,5,7,9,27,2,20,93,4,22,31,6,15,72,24,33,65,8,17,42,74,26,193,10,51, %T A050113 83,99,19,273,28,76,92,108,124,541,3,53,69,85,101,188,21,204,550,30, %U A050113 62,165,94,110,692,126,268,653,14,55,158,71,87 %N A050113 a(n) = position of n in A050112. %Y A050113 Cf. A050112. %K A050113 nonn %O A050113 1,2 %A A050113 _Clark Kimberling_ %E A050113 Definition corrected by _Georg Fischer_, Aug 06 2021