A200445 Number of 0..n arrays x(0..8) of 9 elements with zero 4th differences

2, 3, 4, 5, 6, 9, 12, 17, 22, 37, 52, 71, 94, 117, 148, 197, 250, 305, 364, 453, 546, 655, 768, 897, 1050, 1227, 1412, 1623, 1846, 2121, 2400, 2729, 3066, 3417, 3824, 4289, 4774, 5285, 5812, 6447, 7094, 7799, 8516, 9309, 10190, 11117, 12072, 13101, 14170

Offset

1,1

Comments

Row 5 of A200443

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for n=10
.10....5....9....8....8...10....3...10....7....6....3....0....2....1....9....7
..9....5....9....4....7....6....3....3...10....3....7....1....6....5....8....3
..8....5....9....3....6....3....3....0...10....1....8....2....7....6....7....2
..7....5....9....4....5....1....3....0....8....0....7....3....6....5....6....3
..6....5....9....6....4....0....3....2....5....0....5....4....4....3....5....5
..5....5....9....8....3....0....3....5....2....1....3....5....2....1....4....7
..4....5....9....9....2....1....3....8....0....3....2....6....1....0....3....8
..3....5....9....8....1....3....3...10....0....6....3....7....2....1....2....7
..2....5....9....4....0....6....3...10....3...10....7....8....6....5....1....3

Crossrefs

Sequence in context: A178715 A018123 A105859 * A255362 A017833 A114044

Adjacent sequences: A200442 A200443 A200444 * A200446 A200447 A200448

Keyword

nonn

Author

R. H. Hardin Nov 18 2011

Status

approved