A189333 Number of nondecreasing arrangements of 10 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 four

2, 18, 40, 120, 157, 393, 374, 866, 775, 1426, 1261, 2448, 1761, 3006, 2890, 4232, 3063, 5605, 3802, 6615, 5533, 6899, 5188, 10472, 5864, 8986, 7964, 11411, 7088, 13830, 7645, 13841, 10360, 12801, 9755, 19139, 9300, 15031, 12334, 20347, 10558, 20918

Offset

1,1

Comments

Row 8 of A189326

Links

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

Example

Some solutions for n=3
..0....0....1....1....1....1....1....0....1....0....0....0....1....1....0....1
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....3....3
..1....1....1....1....1....1....2....1....2....1....1....1....1....1....3....3
..2....1....1....1....2....2....3....1....2....2....1....1....1....1....3....3
..2....1....1....1....3....2....3....1....3....3....1....1....1....1....3....3
..3....2....1....1....3....2....3....1....3....3....1....1....2....1....3....3
..3....2....1....1....3....3....3....2....3....3....1....1....3....2....3....3
..3....3....2....1....3....3....3....2....3....3....1....2....3....2....3....3
..3....3....3....2....3....3....3....2....3....3....2....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: A137308 A050594 A098857 * A072278 A296266 A365493

Adjacent sequences: A189330 A189331 A189332 * A189334 A189335 A189336

Keyword

nonn

Author

R. H. Hardin Apr 20 2011

Status

approved