%I
%S 7,67,639,5831,49037,380939,2810751,20169871,142786013,1004527983,
%T 7047533399,49383700439,345855478109,2421574390899,16953120700735,
%U 118679602696751,830786561364589,5815618832245175,40709771502502967
%N Number of length n+1 0..6 arrays with the sum of adjacent differences multiplied by some arrangement of +1 equal to zero
%C Column 6 of A250167
%H R. H. Hardin, <a href="/A250165/b250165.txt">Table of n, a(n) for n = 1..29</a>
%e Some solutions for n=5
%e ..6....2....3....4....4....2....3....4....6....0....0....4....1....4....2....0
%e ..3....6....0....1....2....4....4....6....0....1....0....4....6....3....0....3
%e ..6....3....3....4....6....5....6....3....5....6....6....2....2....4....4....2
%e ..6....4....2....2....1....1....3....3....6....0....1....5....4....0....1....0
%e ..6....3....3....0....6....4....6....1....1....1....2....0....6....0....4....3
%e ..0....4....3....4....2....0....5....0....4....4....0....0....5....4....6....2
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 13 2014
