cp's OEIS Frontend

A188856 Number of 7Xn binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.

%I A188856 #7 Jul 22 2025 11:25:53
%S A188856 54,2916,59939,1001368,16242526,251417066,3821933610,57064872614,
%T A188856 844165036271,12390372090882,180992829653245,2634280800684388,
%U A188856 38249009993388722,554396670218442029,8026024201853260708
%N A188856 Number of 7Xn binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.
%C A188856 Row 7 of A188851
%H A188856 R. H. Hardin, <a href="/A188856/b188856.txt">Table of n, a(n) for n = 1..200</a>
%e A188856 Some solutions for 7X3
%e A188856 ..0..1..0....1..0..1....1..0..0....0..1..0....0..1..1....1..1..1....1..0..0
%e A188856 ..1..1..1....1..1..0....0..1..1....1..0..1....1..0..1....1..0..1....1..1..1
%e A188856 ..1..1..1....1..1..1....1..0..1....0..1..1....1..1..0....0..1..1....1..0..1
%e A188856 ..0..1..1....1..0..0....0..1..1....1..1..0....0..1..1....1..1..1....0..1..1
%e A188856 ..1..1..1....0..1..1....0..1..1....0..1..1....1..1..0....1..1..1....1..1..1
%e A188856 ..0..1..1....1..0..1....0..1..0....1..0..0....0..1..1....0..1..0....1..0..0
%e A188856 ..0..1..1....1..1..0....0..1..0....0..1..0....0..1..1....1..1..0....1..1..0
%K A188856 nonn
%O A188856 1,1
%A A188856 _R. H. Hardin_ Apr 12 2011