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Number of length 6+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four
1

%I #4 Oct 20 2014 18:45:56

%S 22,243,8504,83045,412334,2439587,9128450,26718133,77477206,186461959,

%T 393375414,815573943,1532600102,2665869517,4588603836,7429078523,

%U 11465527204,17540618531,25835346484,36786441199,52063130104,71754093333

%N Number of length 6+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four

%C Row 6 of A249085

%H R. H. Hardin, <a href="/A249091/b249091.txt">Table of n, a(n) for n = 1..29</a>

%e Some solutions for n=4

%e ..0....3....2....2....3....2....4....1....4....1....3....3....4....1....4....2

%e ..1....3....3....1....1....1....0....3....3....0....2....0....3....2....2....4

%e ..4....1....3....4....2....0....2....3....1....3....1....2....1....3....2....1

%e ..0....1....4....0....3....0....0....4....4....0....2....3....0....4....0....3

%e ..3....3....3....4....3....0....0....1....3....1....3....2....1....4....2....3

%e ..1....1....3....4....3....0....0....3....3....1....4....2....3....1....2....2

%e ..3....3....2....2....3....2....1....1....4....1....3....0....4....1....1....2

%e ..4....3....0....4....4....4....0....0....3....3....2....0....3....2....2....4

%e ..1....4....0....4....2....3....2....0....1....0....1....2....4....3....2....4

%e ..0....1....1....3....0....0....0....4....4....3....2....0....0....4....3....0

%e ..0....3....3....4....3....0....3....4....3....1....3....2....1....4....2....3

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 20 2014