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%I #5 Mar 31 2012 12:36:10
%S 1670,2983,5191,8373,13343,20224,30358,43750,62354,86173,118859,
%T 159445,213459,277174,362216,461894,590268,739245,924861,1139511,
%U 1409109,1712354,2087342,2501092,3011962,3576355,4267359,5020859,5914551,6899802
%N Number of nondecreasing arrangements of 8 numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*x(i)^2 zero
%C Row 8 of A188002
%H R. H. Hardin, <a href="/A188008/b188008.txt">Table of n, a(n) for n = 1..31</a>
%e Some solutions for n=3
%e .-5...-8...-6...-9...-6...-8...-6...-4...-6...-7...-6...-8...-8...-6...-8...-7
%e .-4...-7...-6...-6...-2...-8...-6...-4...-5...-6...-3...-8...-7...-6...-8...-6
%e .-4...-4...-3...-2...-2...-2...-6...-4...-1...-2...-3....0...-6...-4...-4...-3
%e .-1....2...-3...-2...-1....0....0...-1....1...-2...-2....1...-2....1...-1...-2
%e .-1....3....2...-2....0....0....2....0....2....2...-1....1...-1....2....3....3
%e ..1....4....5...-1....2....2....2....0....4....2....3....3....3....3....6....3
%e ..3....6....5....7....4....8....6....0....4....2....5....6....8....5....6....4
%e ..7....8....6....9....5....8....8....7....5....9....5....9....9....7....8....8
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 18 2011