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A188274
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Number of nondecreasing strings of numbers x(i=1..n) in -6..6 with sum x(i)^3 equal to 0
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1
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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
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history;
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OFFSET
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1,2
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COMMENTS
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Column 6 of A188277
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..200
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EXAMPLE
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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
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CROSSREFS
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Sequence in context: A111217 A198341 A186142 * A140252 A095343 A121210
Adjacent sequences: A188271 A188272 A188273 * A188275 A188276 A188277
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Mar 26 2011
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STATUS
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approved
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