A190045 Number of nondecreasing arrangements of 8 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding three

2, 14, 22, 53, 45, 107, 60, 164, 100, 189, 99, 311, 121, 251, 241, 358, 146, 447, 167, 495, 339, 381, 208, 753, 276, 470, 396, 674, 268, 860, 289, 760, 500, 602, 469, 1131, 326, 690, 576, 1130, 372, 1150, 386, 1020, 849, 813, 430, 1595, 499, 1090, 769, 1215, 482

Offset

1,1

Comments

Row 6 of A190041

Links

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

Example

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

Crossrefs

Sequence in context: A066613 A074312 A061426 * A247035 A069512 A328217

Adjacent sequences: A190042 A190043 A190044 * A190046 A190047 A190048

Keyword

nonn

Author

R. H. Hardin May 04 2011

Status

approved