%I #4 Oct 23 2014 10:32:18

%S 2772,7736,21648,60744,170928,482388,1365524,3889132,11085704,

%T 31624832,90291712,257986472,737641956,2111829480,6047886156,

%U 17324092484,49634779596,142232471640,407642504688,1168643504468,3350608310100

%N Number of length n+5 0..3 arrays with no six consecutive terms having two times the sum of any two elements equal to the sum of the remaining four

%C Column 3 of A249233

%H R. H. Hardin, <a href="/A249228/b249228.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0....0....1....0....2....0....0....0....2....0....0....1....2....0....0....0

%e ..0....3....0....3....0....1....2....1....0....2....2....0....1....0....1....3

%e ..0....3....3....0....2....0....3....3....0....1....3....1....3....1....1....2

%e ..3....0....2....0....1....1....1....2....3....3....3....3....1....1....0....2

%e ..2....3....0....2....0....0....3....2....2....2....1....0....2....0....2....2

%e ..0....3....1....0....2....3....2....0....0....0....2....3....2....0....3....1

%e ..0....3....1....0....2....0....0....0....0....3....0....1....2....0....0....1

%e ..2....0....0....2....0....0....2....1....3....1....1....3....0....3....2....3

%e ..3....1....0....0....2....0....3....2....3....2....3....0....1....1....0....1

%e ..1....3....2....3....2....2....0....3....2....3....1....0....0....3....0....2

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 23 2014