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 A085220 #6 May 18 2024 18:36:02 %S A085220 0,1,1,2,5,2,3,14,15,3,4,15,56,17,4,5,22,57,62,21,5,6,23,88,63,80,23, %T A085220 6,7,54,89,94,81,86,57,7,8,55,270,95,112,87,272,59,8,9,56,271,294,113, %U A085220 118,273,278,63,9,10,57,272,295,390,119,424,279,296,65,10,11,58,273,296,391 %N A085220 Transpose of A085219. %Y A085220 Factorial expansions of the same entries: A085222. %K A085220 nonn,tabl %O A085220 0,4 %A A085220 _Antti Karttunen_, Jun 23 2003