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 A246149 #5 May 02 2022 09:44:19 %S A246149 1,3,14,47,173,545,1682,4745,12791,32327,78040,179201,395178,837103, %T A246149 1713036,3391541,6520796,12195482,22245864,39638722,69130894, %U A246149 118164586,198257980,326885254,530284337,847202952,1334313866,2073348286,3181127987,4822620934,7228875542 %N A246149 Number of inequivalent n X 4 binary matrices, where equivalence means permutations of rows or columns or the symbol set. %H A246149 <a href="/index/Mat#inequiv">Index to number of inequivalent matrices modulo permutation of rows and columns</a> %Y A246149 Column k=4 of A242093. %K A246149 nonn %O A246149 0,2 %A A246149 _Alois P. Heinz_, Aug 17 2014