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%I #3 Nov 16 2014 06:59:36
%S 6,48,140,1132,6732,51884,381812,2783500,19762916,135821156,901633552,
%T 5803821376,36474619144,225357234996,1376605005684,8348102460156
%N Number of length n+1 0..5 arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero
%C Column 5 of A250277
%e Some solutions for n=6
%e ..4....4....2....0....0....5....1....3....4....1....3....0....2....3....0....0
%e ..2....4....1....1....3....5....2....2....1....1....2....3....3....5....2....3
%e ..4....0....2....5....5....2....5....3....5....5....2....2....5....5....3....0
%e ..3....4....1....3....1....5....1....3....4....5....4....3....2....2....4....1
%e ..1....1....5....1....2....4....2....2....4....4....5....3....5....0....3....5
%e ..2....4....2....1....1....4....4....1....1....0....5....3....1....4....5....4
%e ..0....4....0....4....0....3....1....3....0....1....3....0....2....3....2....4
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 16 2014