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 A188761 #7 Jul 22 2025 11:21:37 %S A188761 54,2916,82807,2125134,48759352,1076278662,23051042448,486675087796, %T A188761 10173867472000,211512633571598,4381259021867922,90552637913884195, %U A188761 1868853564303970702,38534809875015493620,794094746915798233015 %N A188761 Number of nX7 binary arrays without the pattern 0 0 1 vertically or horizontally. %C A188761 Column 7 of A188763 %H A188761 R. H. Hardin, <a href="/A188761/b188761.txt">Table of n, a(n) for n = 1..200</a> %e A188761 Some solutions for 3X7 %e A188761 ..1..1..1..1..1..1..1....0..1..1..0..1..1..0....0..1..1..0..1..1..0 %e A188761 ..1..1..1..1..1..0..0....1..0..1..1..0..1..1....0..1..1..1..0..1..1 %e A188761 ..1..1..0..1..1..1..0....0..1..0..1..0..1..0....0..1..0..0..0..0..0 %K A188761 nonn %O A188761 1,1 %A A188761 _R. H. Hardin_ Apr 09 2011