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

Author

R. H. Hardin Apr 20 2011

Keywords

• nonn

Comments

Row 8 of A189326

Examples

			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
		

Links

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