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%I #5 Mar 31 2012 12:36:11
%S 0,5,18,94,472,2519,13694,76251,431488,2477726,14399942,84570550,
%T 501197804,2994043007,18012040166,109041492241,663838548026,
%U 4061954970953,24969125105686,154130498547414,955070091156516
%N Number of nondecreasing arrangements of n nonzero numbers in -(n+3)..(n+3) with sum zero
%C Column 5 of A188333
%H R. H. Hardin, <a href="/A188329/b188329.txt">Table of n, a(n) for n = 1..24</a>
%e Some solutions for n=6
%e .-7...-7...-6...-8...-8...-6...-9...-8...-8...-9...-8...-8...-7...-8...-9...-7
%e .-6...-5...-6...-3...-5...-6...-7...-6...-5...-6...-6...-8...-3...-8...-5...-3
%e .-1...-2...-4...-2...-4...-6....1....1...-2....1....2...-1...-1....2....3....1
%e ..4....1...-2....2....4....3....3....2...-1....3....3....5...-1....2....3....2
%e ..5....5....9....4....4....6....5....4....7....3....4....6....5....5....4....2
%e ..5....8....9....7....9....9....7....7....9....8....5....6....7....7....4....5
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 28 2011
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