%I #3 Dec 02 2014 17:42:20
%S 240,9439,127566,938895,4868362,19285211,64105154,183394583,471403286,
%T 1102425601,2401296076,4893740761,9479843984,17499293961,31078021378,
%U 53193428735,88367832130,142559457359
%N Number of length 7+2 0..n arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero
%C Row 7 of A251428
%e Some solutions for n=3
%e ..1....0....0....1....1....0....1....0....2....3....0....2....3....3....2....0
%e ..1....1....0....1....0....3....0....2....1....2....0....1....0....1....2....3
%e ..1....1....3....2....1....1....3....1....3....0....0....2....2....2....2....3
%e ..2....1....3....2....0....0....2....1....1....0....2....3....0....1....1....3
%e ..1....2....0....0....2....0....1....2....1....1....0....2....2....3....0....2
%e ..1....2....1....3....2....2....0....3....0....2....3....1....0....2....1....0
%e ..2....0....3....2....0....0....2....0....3....3....3....2....1....3....1....3
%e ..1....1....3....3....3....0....0....2....3....0....2....3....0....1....3....0
%e ..1....0....2....2....0....3....2....2....0....3....0....3....2....3....0....1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 02 2014