%I #5 Mar 31 2012 12:37:03
%S 511,5219,50177,476919,4484324,41716355,384523522,3504247804,
%T 31566721277,280920331934,2471233351768,21510581598211,
%U 185527816735040,1588088987381607,13511723296065256,114430286873282233
%N Number of (n+1)X8 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero
%C Column 7 of A204740
%H R. H. Hardin, <a href="/A204739/b204739.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..0..1..0..1..1..1..1....1..0..1..1..1..1..1..0....0..1..0..1..0..1..0..1
%e ..1..1..1..1..0..1..1..1....0..1..0..1..0..1..0..1....1..1..1..1..1..1..1..1
%e ..0..1..0..1..1..1..1..1....1..0..1..1..1..1..1..1....0..1..0..1..0..1..0..1
%e ..1..0..1..1..0..1..1..1....0..1..1..0..1..0..1..0....1..0..1..0..1..0..1..1
%e ..1..1..0..1..1..1..1..1....1..1..0..1..1..1..1..1....1..1..1..1..0..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 18 2012