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Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001
1

%I #4 Jul 28 2015 19:27:41

%S 2732,4296,11370,22212,40916,105058,219852,434066,1050126,2356780,

%T 4693462,10782734,24926220,51270870,112254332,260975658,556547696,

%U 1188249860,2722931988,5983413184,12716775116,28508190056,63712199118

%N Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001

%C Column 7 of A260544

%H R. H. Hardin, <a href="/A260543/b260543.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..0..1..1..0..0..0..0..0..1....0..0..0..0..1..0..0..1..0

%e ..0..0..0..0..0..1..0..0..1....0..0..0..0..1..0..0..0..0

%e ..0..0..0..0..0..1..0..0..0....1..1..0..0..0..0..0..0..0

%e ..0..1..1..0..0..0..0..0..0....0..0..0..0..0..0..0..1..0

%e ..0..0..0..0..0..0..0..0..1....0..0..0..1..1..0..0..1..0

%e ..0..0..0..0..1..1..0..0..0....1..0..0..0..0..0..0..0..0

%Y Cf. A260544

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 28 2015