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%I #4 Oct 24 2014 08:39:42
%S 548,18232,237480,3164312,20626236,106687006,446465388,1564897170,
%T 4760601928,13086372374,32599885184,75623146588,164589989052,
%U 338640259244,663790705232,1250055198186,2264746878484,3971666747616
%N Number of length 7+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth
%C Row 7 of A249290
%H R. H. Hardin, <a href="/A249297/b249297.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0....0....0....0....1....0....0....1....1....0....2....1....0....0....1....0
%e ..0....2....1....1....2....0....0....0....1....0....2....0....0....2....0....2
%e ..2....0....0....0....2....0....1....2....2....2....1....2....0....1....0....0
%e ..1....1....0....2....2....2....0....0....2....0....1....2....2....2....1....2
%e ..2....0....2....0....0....0....1....0....0....1....2....0....0....1....2....1
%e ..1....2....1....0....1....0....0....1....0....2....2....1....0....2....0....2
%e ..2....0....0....2....2....1....2....0....2....0....2....2....2....1....2....2
%e ..0....2....2....0....2....0....2....2....0....0....0....0....0....1....0....2
%e ..2....0....2....2....1....2....1....2....2....1....2....0....0....2....0....0
%e ..2....0....1....2....1....0....2....2....1....1....2....1....0....2....2....1
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 24 2014
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