A200199 Number of -3..3 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences

186, 1106, 6418, 37226, 217946, 1282168, 7609122, 45311478, 270793444, 1623115640, 9752855676, 58737147004, 354446311678, 2142635088724, 12972537700224, 78651690691664, 477462935113362, 2901805987457704

Offset

1,1

Comments

Column 3 of A200204

Links

R. H. Hardin, Table of n, a(n) for n = 1..162

Example

Some solutions for n=3
..0...-3...-1....0....0....3....0....1....2...-3....2...-1...-1....1...-1....1
..2...-2....3....3...-1....2...-1....0...-1....3....1...-2....1...-2....0...-1
..0....1...-2...-2....0...-2...-3....3...-3....2....1...-2...-1....2....2....0
.-1....0...-2...-2....2...-1...-1...-3....3....3...-2....3....2....0....3...-2
..1....2....2....2...-2....1....2....1....2...-2...-3....3...-1....1...-1....1
.-2....2....0...-1....1...-3....3...-2...-3...-3....1...-1....0...-2...-3....1

Crossrefs

Sequence in context: A258276 A286006 A234108 * A364859 A251499 A251492

Adjacent sequences: A200196 A200197 A200198 * A200200 A200201 A200202

Keyword

nonn

Author

R. H. Hardin Nov 14 2011

Status

approved