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%I #4 Oct 08 2014 04:04:36
%S 2,15,52,173,594,1219,2960,6069,10858,16099,23300,33707,47400,63085,
%T 82288,106583,135878,168791,206738,250813,302416,358755,422014,498189,
%U 580572,669539,768718,878929,998028,1123317,1258070,1407363,1570088
%N Number of length 6+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth
%C Row 6 of A248537
%H R. H. Hardin, <a href="/A248543/b248543.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=6
%e ..5....2....0....4....2....4....0....3....4....5....3....5....5....4....0....3
%e ..5....0....1....5....1....0....4....1....5....2....4....1....2....1....2....1
%e ..4....1....2....4....2....5....3....2....4....2....3....0....1....2....1....6
%e ..2....1....1....3....3....3....5....6....3....3....6....2....0....1....1....2
%e ..5....2....0....0....2....4....4....3....4....5....3....1....1....0....0....3
%e ..5....4....1....5....1....4....0....1....5....2....0....1....2....1....2....1
%e ..4....1....2....4....2....5....3....2....0....2....3....4....1....2....1....2
%e ..6....1....1....3....3....3....5....2....3....3....2....2....4....5....5....6
%e ..5....2....4....0....2....0....4....3....4....5....3....1....1....0....0....3
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 08 2014
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