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%I #6 May 10 2023 04:00:02
%S 1,5,8,34,88,421,1696,8373,40681,211234,1111148,5987390,32752144,
%T 181900825,1022304310,5807285713,33301251729,192592146915,
%U 1122301928144,6585197085192,38881934489280,230894913761474,1378357322150656,8268192777096128
%N Number of nondecreasing arrangements of n numbers x(i) in -(n+2)..(n+2) with the sum of sign(x(i))*x(i)^2 zero
%C Column 4 of A188002
%e All solutions for n=3
%e .-5....0...-4...-1...-4...-5...-2...-3
%e ..3....0...-3....0....0....0....0....0
%e ..4....0....5....1....4....5....2....3
%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