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A188274
Number of nondecreasing strings of numbers x(i=1..n) in -6..6 with sum x(i)^3 equal to 0.
1
1, 7, 7, 30, 30, 106, 114, 346, 422, 1070, 1482, 3166, 4778, 8954, 14026, 23987, 37639, 60443, 93145, 143096, 214982, 319514, 467648, 676718, 966748, 1367076, 1911186, 2647754, 3631406, 4939378, 6659970, 8910883, 11832157, 15599235, 20427293
OFFSET
1,2
COMMENTS
Column 6 of A188277.
LINKS
EXAMPLE
Some solutions for n=8, k=6
.-3...-4...-6...-2...-6...-5...-5...-5...-4...-4...-3...-5...-6...-5...-6...-6
.-2...-3...-2...-2...-6...-5...-4...-4...-3...-1...-3...-4...-5...-4...-4...-6
..0....1....0...-2...-5...-3...-4...-3...-3...-1....0....0...-4...-3...-4...-6
..0....1....0....0....0...-1...-3....0...-3....0....0....0...-1...-3....0....0
..0....2....2....0....0....2...-3....0....3....0....0....0....1...-3....0....0
..0....3....3....2....5....3....3....3....3....1....0....0....4....3....4....6
..2....3....4....2....6....3....4....4....3....1....3....4....5....3....4....6
..3....3....5....2....6....6....6....5....4....4....3....5....6....6....6....6
CROSSREFS
Cf. A188277.
Sequence in context: A341246 A246039 A186142 * A255281 A255283 A140252
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 26 2011
STATUS
approved