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%I #4 Oct 23 2014 21:15:11
%S 2,395,2048,10673,37442,108563,326788,834875,1849962,3798009,7085676,
%T 12662655,21180474,36068329,57764888,90289349,134865410,197997863,
%U 280852856,393449209,547109446,752377935,1008548684,1340579835
%N Number of length 2+6 0..n arrays with every seven consecutive terms having five times the sum of some two elements equal to two times the sum of the remaining five
%C Row 2 of A249255
%H R. H. Hardin, <a href="/A249257/b249257.txt">Table of n, a(n) for n = 1..36</a>
%e Some solutions for n=6
%e ..4....3....4....4....0....1....0....0....1....2....3....3....1....0....0....0
%e ..5....0....5....0....1....1....2....2....3....2....3....2....4....2....4....4
%e ..2....5....4....5....3....0....4....6....3....1....2....0....0....4....3....0
%e ..0....6....4....4....2....6....3....3....3....1....0....4....3....5....3....0
%e ..5....3....5....3....1....2....6....1....5....3....6....5....5....3....3....2
%e ..0....4....3....3....1....5....1....4....1....1....2....1....4....2....3....3
%e ..5....0....3....2....6....6....5....5....5....4....5....6....4....5....5....5
%e ..4....3....4....4....0....1....0....0....1....2....3....3....1....0....0....0
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 23 2014