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%I #4 Oct 23 2014 08:45:27
%S 250,4586,51200,294568,1267754,4353482,12777540,32910110,77097762,
%T 165865332,335432460,639208042,1165096450,2034488164,3435664024,
%U 5608125804,8919812138,13812228622,20946412056,31084523896,45360185886
%N Number of length 2+6 0..n arrays with no seven consecutive terms having five times the sum of any two elements equal to two times the sum of the remaining five
%C Row 2 of A249212
%H R. H. Hardin, <a href="/A249214/b249214.txt">Table of n, a(n) for n = 1..26</a>
%e Some solutions for n=3
%e ..2....2....2....2....3....2....0....1....3....2....2....0....2....0....1....2
%e ..1....0....3....0....0....2....3....3....3....1....0....1....3....0....3....2
%e ..2....3....2....0....1....0....1....1....0....0....1....2....1....0....3....1
%e ..0....1....2....2....0....2....3....3....0....0....3....3....2....2....2....1
%e ..3....2....3....1....1....0....2....0....0....0....1....0....1....3....0....2
%e ..0....0....0....2....0....0....2....2....0....0....3....1....0....2....2....2
%e ..0....2....0....3....3....2....2....0....1....1....1....2....1....2....0....0
%e ..0....0....0....3....3....0....3....2....0....1....2....2....0....2....1....3
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 23 2014
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