%I #4 Nov 02 2013 07:17:50
%S 13,57,332,1573,8357,43004,223270,1168723,6098749,31928221,167211867,
%T 875862454,4590346691,24059996616,126124391879,661229366397,
%U 3466736635802,18176404398121,95303022729314,499702347782465
%N Number of white square subarrays of (n+1)X(7+1) binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with upper left element zero
%C Column 7 of A230989
%H R. H. Hardin, <a href="/A230988/b230988.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=6
%e ..0..x..0..x..0..x..1..x....0..x..0..x..0..x..0..x....0..x..1..x..1..x..0..x
%e ..x..1..x..1..x..0..x..0....x..1..x..0..x..1..x..1....x..1..x..0..x..0..x..1
%e ..1..x..0..x..0..x..1..x....1..x..1..x..1..x..0..x....1..x..0..x..1..x..0..x
%e ..x..0..x..1..x..0..x..1....x..0..x..1..x..0..x..0....x..0..x..1..x..0..x..1
%e ..0..x..1..x..1..x..0..x....1..x..0..x..0..x..1..x....1..x..1..x..0..x..1..x
%e ..x..1..x..0..x..0..x..1....x..0..x..1..x..0..x..1....x..0..x..1..x..1..x..0
%e ..0..x..0..x..1..x..0..x....1..x..1..x..1..x..0..x....1..x..0..x..0..x..1..x
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 02 2013