%I #6 Apr 05 2020 22:24:03
%S 32,932,24568,636996,16517429,428106288,11089818502,287216470434,
%T 7438206463442,192627120115467,4988415429339854,129183253864605762,
%U 3345409035962645279,86634725216940266856,2243544511793704829943
%N Number of n X 5 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 6 binary array having two adjacent 1's and two adjacent 0's.
%C Column 5 of A227442.
%H R. H. Hardin, <a href="/A227441/b227441.txt">Table of n, a(n) for n = 1..24</a>
%e Some solutions for n=4
%e ..0..0..0..1..0....0..0..0..1..0....0..0..0..1..1....0..0..1..0..0
%e ..1..0..1..1..0....1..0..0..0..1....1..1..0..1..0....0..0..0..0..1
%e ..0..0..1..0..1....1..1..1..1..1....0..0..1..1..0....1..0..0..1..0
%e ..1..1..0..1..0....1..0..0..1..1....1..1..0..1..0....0..1..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jul 11 2013