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 A188276 Number of nondecreasing strings of numbers x(i=1..n) in -8..8 with sum x(i)^3 equal to 0 1

%I #5 Mar 31 2012 12:36:11

%S 1,9,9,47,51,197,273,817,1415,3505,6771,14809,29081,58569,112037,

%T 212324,390100,703384,1239030,2140338,3625668,6033514,9871162,

%U 15898890,25227434,39480322,60974256,93019236,140247810,209137826,308609616,450893469

%N Number of nondecreasing strings of numbers x(i=1..n) in -8..8 with sum x(i)^3 equal to 0

%C Column 8 of A188277

%H R. H. Hardin, <a href="/A188276/b188276.txt">Table of n, a(n) for n = 1..165</a>

%e Some solutions for n=10 k=8

%e .-7...-8...-3...-7...-4...-7...-8...-8...-4...-7...-5...-4...-6...-6...-8...-7

%e .-6...-8...-3...-4...-4...-7...-6...-7...-3...-6...-5...-4...-4...-5...-3...-7

%e .-5...-5...-2...-4...-4...-4...-4...-7...-3...-2...-5...-4...-4...-4...-3...-3

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

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

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

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

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

%e ..6....8....3....4....4....7....6....8....4....3....6....4....5....6....6....5

%e ..7....8....3....7....4....7....7....8....4....8....6....4....6....6....7....8

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 26 2011

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