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 A267641 #4 Jan 18 2016 20:10:18 %S A267641 7,98,429,2887,8917,47715,128441,647101,1614281,8168679,19332185, %T A267641 101212349,229707509,1260768903,2761416109,15947280405,33873126897, %U A267641 205385367891,424974329569,2690957511285,5447493560049,35782122811899 %N A267641 Number of nX5 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order. %C A267641 Column 5 of A267644. %H A267641 R. H. Hardin, <a href="/A267641/b267641.txt">Table of n, a(n) for n = 1..210</a> %H A267641 R. H. Hardin, <a href="/A267641/a267641.txt">Empirical recurrence of order 93</a> %F A267641 Empirical recurrence of order 93 (see link above) %e A267641 Some solutions for n=6 %e A267641 ..0..1..1..0..1....0..0..1..0..1....0..1..0..1..1....0..1..0..1..0 %e A267641 ..0..1..0..1..0....1..0..0..1..0....1..0..1..0..1....1..0..1..0..1 %e A267641 ..1..0..1..0..1....0..1..1..0..1....0..1..1..0..0....0..1..0..1..0 %e A267641 ..0..0..1..1..0....1..0..1..0..0....1..0..0..1..0....1..0..1..0..1 %e A267641 ..1..1..0..1..0....0..1..0..1..0....0..0..1..0..1....1..1..0..0..1 %e A267641 ..1..0..1..0..1....0..1..1..0..1....1..1..0..1..0....0..0..1..1..0 %Y A267641 Cf. A267644. %K A267641 nonn %O A267641 1,1 %A A267641 _R. H. Hardin_, Jan 18 2016