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%I #5 Mar 31 2012 12:36:38
%S 752,256314,7609122,88657470,604864626,2949336370,11349503058,
%T 36580061138,103109058584,261224766796,606238931956,1309542607976,
%U 2662545910816,5138238853810,9483237615484,16833404882270,28865075618702
%N Number of -n..n arrays x(0..9) of 10 elements with zero sum and nonzero second and third differences
%C Row 7 of A200204
%H R. H. Hardin, <a href="/A200211/b200211.txt">Table of n, a(n) for n = 1..19</a>
%e Some solutions for n=3
%e .-2...-3...-3...-3...-3...-3...-3...-3...-2...-3...-3...-3...-3...-3...-3...-3
%e .-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3
%e .-3...-2....1....3....0....3....3....3...-3....2....2....3....1....1....3....2
%e .-1....2....3...-2....2....2....2....0....0...-1....2....2...-1....2...-1....0
%e ..0....3....1...-2...-1...-2...-1....2...-1....1...-2...-2....2...-1....2....3
%e ..3...-1....0....0...-1....0....2....1....2....1...-1...-1....3....2...-1....0
%e ..1....3...-3....3....3....3...-1...-1....1....0....1....3....3...-2....2...-1
%e ..0...-1....0...-1...-2...-3....2....1....3....2....0....2...-1....3....3....2
%e ..3....2....2....2....2....1....2...-1....1....2....3...-1...-1....1....0....0
%e ..2....0....2....3....3....2...-3....1....2...-1....1....0....0....0...-2....0
%K nonn
%O 1,1
%A _R. H. Hardin_ Nov 14 2011
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