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%I
%S 298,7132,73204,740616,3996816,17477172,63142432,194636612,528526458,
%T 1310146892,2974170600,6332136700,12731677772,24341338640,44558190142,
%U 78679898026,134198692616,222298159666,358597980904,564781557470
%N Number of length 6+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth
%C Row 6 of A249290
%H R. H. Hardin, <a href="/A249296/b249296.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0....3....0....3....1....0....3....0....3....0....1....0....2....1....0....1
%e ..2....2....3....3....3....2....0....0....3....3....3....3....1....1....1....1
%e ..0....0....2....3....2....1....1....2....2....1....2....1....3....0....2....3
%e ..0....1....0....0....0....3....2....0....1....1....0....1....1....0....0....3
%e ..3....3....2....0....0....3....0....2....0....0....1....1....2....1....0....2
%e ..3....2....0....3....3....1....3....1....2....0....0....3....3....2....0....3
%e ..0....3....3....0....3....1....2....0....3....2....2....3....3....2....2....1
%e ..3....1....2....0....3....0....2....0....1....2....0....1....3....0....0....3
%e ..1....1....2....3....0....0....0....2....1....0....1....1....2....1....1....3
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 24 2014
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