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%I #3 Nov 25 2014 09:29:46
%S 62,989,7126,31525,106362,290909,695890,1486139,2927312,5373103,
%T 9352712,15511735,24776808,38224089,57324690,83749019,119721620,
%U 167645127,230722744,312355167,416892578,548957107,714415336,919264381
%N Number of length 5+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero
%C Row 5 of A250561
%e Some solutions for n=5
%e ..1....1....5....4....0....4....1....3....1....0....3....1....5....1....0....2
%e ..0....4....1....3....5....1....1....2....4....0....0....3....1....2....4....5
%e ..5....5....0....0....5....3....4....2....4....1....0....3....2....5....1....4
%e ..0....2....3....4....1....2....3....2....5....5....4....1....1....3....3....3
%e ..0....2....5....0....2....3....0....4....3....5....0....3....1....5....4....5
%e ..2....5....5....1....0....5....3....1....2....5....5....0....4....1....1....0
%e ..1....0....1....0....1....0....1....2....5....3....4....2....4....2....3....1
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 25 2014
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