A188005 - OEIS

%I #5 Mar 31 2012 12:36:10

%S 25,45,64,88,117,159,216,270,333,421,500,628,731,869,1000,1156,1349,

%T 1545,1718,1940,2163,2525,2806,3116,3405,3785,4208,4608,4983,5443,

%U 5888,6510,7011,7627,8142,8832,9537,10287,10954,11730,12405,13437,14180,15098

%N Number of nondecreasing arrangements of 5 numbers x(i) in -(n+3)..(n+3) with the sum of sign(x(i))*x(i)^2 zero

%C Row 5 of A188002

%H R. H. Hardin, <a href="/A188005/b188005.txt">Table of n, a(n) for n = 1..83</a>

%e Some solutions for n=3

%e .-6...-6...-5...-4...-6...-4...-3...-5...-1...-4...-4...-4...-6...-4...-5...-3

%e ..1...-3...-4...-4....3...-3...-3...-3....0...-2...-3...-3...-6...-4...-4....0

%e ..1....2...-3....0....3....0....0...-1....0...-2...-2...-3....0...-2....3....0

%e ..3....4....5....4....3....0....3...-1....0...-1....2....3....6....0....4....0

%e ..5....5....5....4....3....5....3....6....1....5....5....5....6....6....4....3

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 18 2011