|
%I #5 Mar 31 2012 12:35:55
%S 1,9,41,177,649,2137,6375,17575,45207,109583,252117,553981,1168261,
%T 2374753,4669367,8908546,16535154,29927526,52925886,91617530,
%U 155484150,259062316,424306230,683919048,1085984406,1700352360,2627337510
%N Number of nondecreasing arrangements of n numbers in -8..8 with sum zero
%C Column 8 of A183917
%H R. H. Hardin, <a href="/A183916/b183916.txt">Table of n, a(n) for n = 1..63</a>
%e Some solutions for n=4
%e .-6...-7...-7...-3...-7...-7...-4...-4...-4...-1...-2...-8...-6...-4...-5...-8
%e .-3...-5....2...-1....0....1...-2....1...-3...-1...-2...-1....1....0...-1....1
%e ..4....4....2....0....0....1....0....1....3....0....1....4....2....1....1....3
%e ..5....8....3....4....7....5....6....2....4....2....3....5....3....3....5....4
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 07 2011
|
