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 A085228 #9 May 18 2024 15:58:16 %S A085228 2,15,124,153,1237,1328,1537,1628,1794,13793,14091,14797,15095,15668, %T A085228 17234,17532,18238,18536,19109,20244,20542,21115,22117,164867,165869, %U A085228 168302,169304,171307,176810,177812,180245,181247,183250,187321,188323 %N A085228 Diagonal of array A085205. %F A085228 a(n) = A085205bi(n, n). %Y A085228 Cf. A085205. %K A085228 nonn %O A085228 0,1 %A A085228 _Antti Karttunen_, Jun 23 2003