cp's OEIS Frontend

A189700 Number of 7Xn binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally.

%I A189700 #7 Jul 22 2025 11:53:50
%S A189700 54,2916,77752,1999150,55423132,1553640701,43645304766,1226051976034,
%T A189700 34463827972461,968925997882076,27242280161913994,765954539776147015,
%U A189700 21536381951216338725,605544975017743747314,17026369106775648529847
%N A189700 Number of 7Xn binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally.
%C A189700 Row 7 of A189696
%H A189700 R. H. Hardin, <a href="/A189700/b189700.txt">Table of n, a(n) for n = 1..200</a>
%e A189700 Some solutions for 7X3
%e A189700 ..0..1..0....1..0..0....0..0..0....1..1..1....1..0..0....1..0..1....1..0..0
%e A189700 ..1..1..1....1..1..1....1..1..1....1..1..0....0..1..1....0..1..1....0..1..1
%e A189700 ..1..1..1....1..1..0....0..1..0....0..1..1....0..1..1....1..1..1....1..1..1
%e A189700 ..0..1..0....1..1..1....1..1..1....0..1..0....0..0..1....0..0..0....1..1..1
%e A189700 ..1..1..1....1..0..1....1..1..1....0..0..1....0..0..0....1..1..1....0..0..0
%e A189700 ..1..0..0....0..0..1....0..1..0....0..1..0....0..0..0....1..0..1....0..1..1
%e A189700 ..1..0..1....1..0..0....1..0..1....0..1..0....0..0..0....1..0..1....0..0..0
%K A189700 nonn
%O A189700 1,1
%A A189700 _R. H. Hardin_ Apr 25 2011