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 A184760 #7 Jul 22 2025 09:42:47 %S A184760 128,14321,1865917,236878817,30202770902,3848174315295, %T A184760 490358739919898,62483420093901107,7961905153672004774, %U A184760 1014539579452170241886,129276927715415033559253,16473013159661022852279611 %N A184760 Half the number of nX8 binary arrays with no 1 having an adjacent 1 both above and to its left. %C A184760 Column 8 of A184761 %H A184760 R. H. Hardin, <a href="/A184760/b184760.txt">Table of n, a(n) for n = 1..200</a> %e A184760 Some solutions for 3X8 %e A184760 ..0..0..1..0..0..0..0..1....0..0..0..0..1..0..0..1....0..0..0..1..1..0..1..1 %e A184760 ..0..0..0..0..0..0..0..1....0..0..0..1..0..0..0..1....0..0..0..0..0..0..1..0 %e A184760 ..0..0..1..1..1..1..0..0....0..0..0..0..0..0..1..0....0..0..1..1..0..0..1..1 %K A184760 nonn %O A184760 1,1 %A A184760 _R. H. Hardin_ Jan 21 2011