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%I #4 Aug 06 2015 11:13:25
%S 204,239,372,732,1288,2576,4688,8760,15964,30062,55496,105078,192148,
%T 361876,663360,1248880,2301984,4312846,7974836,14889918,27581092,
%U 51446550,95444100,177936588,330029564,614889132,1141497232,2126263226
%N Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101
%C Column 3 of A260980
%H R. H. Hardin, <a href="/A260975/b260975.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 8*a(n-4) +6*a(n-5) +10*a(n-7) +5*a(n-8) -24*a(n-9) -4*a(n-10) -26*a(n-11) +39*a(n-12) -a(n-14) for n>18
%e Some solutions for n=4
%e ..0..1..0..0..1....1..0..0..1..0....0..0..0..1..0....0..1..0..0..1
%e ..0..0..1..0..0....0..0..1..0..0....0..0..0..0..0....0..0..1..0..0
%e ..1..0..0..0..0....1..0..0..0..1....1..0..0..0..0....1..0..0..0..1
%e ..0..1..0..0..0....0..1..0..0..0....0..0..0..1..0....0..0..0..1..0
%e ..0..0..0..1..0....0..0..0..0..0....0..1..0..0..1....0..1..0..0..0
%e ..1..0..0..0..1....0..0..0..0..1....0..0..1..0..0....0..0..1..0..1
%Y Cf. A260980
%K nonn
%O 1,1
%A _R. H. Hardin_, Aug 06 2015
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