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A200211
Number of -n..n arrays x(0..9) of 10 elements with zero sum and nonzero second and third differences
1
752, 256314, 7609122, 88657470, 604864626, 2949336370, 11349503058, 36580061138, 103109058584, 261224766796, 606238931956, 1309542607976, 2662545910816, 5138238853810, 9483237615484, 16833404882270, 28865075618702
OFFSET
1,1
COMMENTS
Row 7 of A200204
LINKS
EXAMPLE
Some solutions for n=3
.-2...-3...-3...-3...-3...-3...-3...-3...-2...-3...-3...-3...-3...-3...-3...-3
.-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3...-3
.-3...-2....1....3....0....3....3....3...-3....2....2....3....1....1....3....2
.-1....2....3...-2....2....2....2....0....0...-1....2....2...-1....2...-1....0
..0....3....1...-2...-1...-2...-1....2...-1....1...-2...-2....2...-1....2....3
..3...-1....0....0...-1....0....2....1....2....1...-1...-1....3....2...-1....0
..1....3...-3....3....3....3...-1...-1....1....0....1....3....3...-2....2...-1
..0...-1....0...-1...-2...-3....2....1....3....2....0....2...-1....3....3....2
..3....2....2....2....2....1....2...-1....1....2....3...-1...-1....1....0....0
..2....0....2....3....3....2...-3....1....2...-1....1....0....0....0...-2....0
CROSSREFS
Sequence in context: A252807 A332000 A223447 * A177423 A251330 A092449
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 14 2011
STATUS
approved