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Number of nX5 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 1 and 1 1 0 vertically
1

%I #5 Mar 31 2012 12:37:21

%S 14,196,618,1711,7016,24512,106503,411848,1787438,7238503,31139116,

%T 128898716,550671103,2303973916,9799872866,41220045503,174880633792,

%U 737543803528,3124620453847,13195708252672,55859776281926

%N Number of nX5 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 1 and 1 1 0 vertically

%C Column 5 of A208007

%H R. H. Hardin, <a href="/A208004/b208004.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 9*a(n-1) -10*a(n-2) -106*a(n-3) +272*a(n-4) +170*a(n-5) -936*a(n-6) +306*a(n-7) +898*a(n-8) -558*a(n-9) -224*a(n-10) +190*a(n-11) +a(n-12) -11*a(n-13) for n>14

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 22 2012