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%I #5 Mar 31 2012 12:37:12
%S 1517,8374,50529,305347,1839784,11172263,67724531,410177144,
%T 2486962308,15075219306,91365402832,553811854726,3356885567485,
%U 20346820069282,123328702944406,747537064469943,4531048838872687,27464108126394996
%N Number of (n+2)X5 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..1 introduced in row major order
%C Column 3 of A206659
%H R. H. Hardin, <a href="/A206654/b206654.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..0..1..0....0..1..0..1..1....0..1..0..1..0....0..0..0..0..0
%e ..0..1..0..0..1....1..0..1..1..1....0..0..0..0..0....1..1..0..1..0
%e ..1..1..0..1..0....0..0..0..1..0....1..1..1..1..1....1..1..1..1..1
%e ..1..1..0..0..0....0..0..1..1..0....0..0..1..0..1....1..0..0..0..0
%e ..1..0..0..0..1....1..1..1..1..0....0..1..1..0..0....0..0..0..1..1
%e ..1..0..0..1..1....0..0..0..1..1....0..1..1..0..1....1..1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 11 2012
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