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 A069444 #9 Apr 07 2021 18:42:09 %S A069444 32,12064,1896074,200993408,17550580192,1374566625956 %N A069444 Half the number of n X 6 binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row. %Y A069444 Cf. 2 X n A000079, n X 1 A000225, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452. %K A069444 nonn %O A069444 2,1 %A A069444 _R. H. Hardin_, Mar 22 2002