A200266 Number of 0..2 arrays x(0..n+1) of n+2 elements with zero n-1st differences

1, 3, 3, 3, 5, 5, 5, 7, 3, 3, 7, 9, 11, 17, 5, 3, 13, 17, 15, 21, 5, 9, 21, 19, 9, 13, 3, 5, 21, 17

Offset

1,2

Comments

Column 2 of A200272

Links

Table of n, a(n) for n=1..30.

Example

All solutions for n=6
..1....1....0....1....2
..0....2....0....1....2
..1....1....0....1....2
..2....0....0....1....2
..2....0....0....1....2
..1....1....0....1....2
..0....2....0....1....2
..1....1....0....1....2

Crossrefs

Sequence in context: A162226 A001650 A130175 * A101290 A080605 A130823

Adjacent sequences: A200263 A200264 A200265 * A200267 A200268 A200269

Keyword

nonn

Author

R. H. Hardin Nov 15 2011

Status

approved