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Number of length n+4 0..7 arrays with no disjoint pairs in any consecutive five terms having the same sum
1

%I #4 Sep 16 2014 08:02:03

%S 12120,49032,201172,826488,3385192,13824356,56865236,234794368,

%T 969917240,4001182804,16485572528,67985714396,280631148932,

%U 1158709193724,4782845970920,19735114869944,81437829945420,336129412428444

%N Number of length n+4 0..7 arrays with no disjoint pairs in any consecutive five terms having the same sum

%C Column 7 of A247404

%H R. H. Hardin, <a href="/A247403/b247403.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2....4....5....1....7....1....1....5....7....6....1....0....2....0....2....6

%e ..6....2....5....4....7....5....0....1....6....7....1....5....5....5....0....6

%e ..4....2....3....3....5....7....2....1....4....3....1....7....6....1....7....3

%e ..7....6....0....4....0....4....4....6....2....7....0....0....2....3....2....0

%e ..7....5....6....4....6....1....7....7....2....7....3....6....7....1....6....6

%e ..7....7....6....7....5....1....4....5....3....5....6....5....5....6....0....6

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 16 2014