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A188306 Number of (n+1)X5 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums 1

%I #5 Mar 31 2012 12:36:11

%S 160,3036,30096,321696,3415196,37040856,396560236,4280848766,

%T 45974525280,495422640310,5328080437862,57374376030330,

%U 617348839225218,6645962770531796,71524119538407004,769894519113954114

%N Number of (n+1)X5 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums

%C Column 4 of A188311

%H R. H. Hardin, <a href="/A188306/b188306.txt">Table of n, a(n) for n = 1..196</a>

%e Some solutions for 3X5

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2011

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