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A187997 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 0

%I

%S 1,5,8,34,88,421,1696,8373,40681,211234,1111148,5987390,32752144,

%T 181900825,1022304310,5807285713

%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

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Last modified January 27 16:36 EST 2022. Contains 350610 sequences. (Running on oeis4.)