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 A246123 #7 May 02 2022 09:43:06 %S A246123 1,1,9,773,12872565,18591188894392,1015303397880332132695, %T A246123 2006943506669869627232430791792, %U A246123 148870004307406359229098552180494085417700,427548526344388851318876075291587420840143834762159765 %N A246123 Number of inequivalent n X n matrices with entries from [7], where equivalence means permutations of rows or columns or the symbol set. %H A246123 <a href="/index/Mat#inequiv">Index to number of inequivalent matrices modulo permutation of rows and columns</a> %Y A246123 Column k=7 of A242095. %K A246123 nonn %O A246123 0,3 %A A246123 _Alois P. Heinz_, Aug 15 2014