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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
1, 9, 9, 47, 51, 197, 273, 817, 1415, 3505, 6771, 14809, 29081, 58569, 112037, 212324, 390100, 703384, 1239030, 2140338, 3625668, 6033514, 9871162, 15898890, 25227434, 39480322, 60974256, 93019236, 140247810, 209137826, 308609616, 450893469 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 8 of A188277
LINKS
EXAMPLE
Some solutions for n=10 k=8
.-7...-8...-3...-7...-4...-7...-8...-8...-4...-7...-5...-4...-6...-6...-8...-7
.-6...-8...-3...-4...-4...-7...-6...-7...-3...-6...-5...-4...-4...-5...-3...-7
.-5...-5...-2...-4...-4...-4...-4...-7...-3...-2...-5...-4...-4...-4...-3...-3
.-2...-2...-2...-2...-1...-3....3...-5...-3....0...-4...-4....0...-3...-3...-2
.-1....0...-1....0....0...-3....3...-5....0....0...-4...-3....0...-2...-1...-2
..1....0....1....0....0....3....3...-2....1....0...-3....3....1...-1....0....1
..2....2....2....2....1....3....3....6....2....1...-3....4....1....1....2....3
..5....5....2....4....4....4....5....6....2....3....5....4....1....2....3....4
..6....8....3....4....4....7....6....8....4....3....6....4....5....6....6....5
..7....8....3....7....4....7....7....8....4....8....6....4....6....6....7....8
CROSSREFS
Sequence in context: A339341 A242585 A341251 * A152752 A095344 A141635
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 26 2011
STATUS
approved

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Last modified June 20 02:43 EDT 2024. Contains 373512 sequences. (Running on oeis4.)