%I #6 May 10 2023 04:16:11
%S 1,8,11,75,216,1206,5443,30358,160866,907542,5096859,29196613,
%T 168131646,978358588,5726901772,33757032775,200087891459,119249818917,
%U 7141550411892,42964572899496,25956521481379,1574290540818422
%N Number of nondecreasing arrangements of n numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*x(i)^2 zero
%C Column 7 of A188002
%e All solutions for n=3
%e .-4...-8...-5...-6...-4...-7...-2...-3...-5...-1....0
%e .-3....0....3....0....0....0....0....0....0....0....0
%e ..5....8....4....6....4....7....2....3....5....1....0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 18 2011
%E Terms from a(17) on by _R. J. Mathar_, May 10 2023