A190034 Number of nondecreasing arrangements of n+2 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, 6, 10, 27, 33, 107, 80, 349, 264, 735, 357, 2809, 736, 2565, 3262, 10997, 1258, 17921, 2313, 34880, 12649, 17448, 4348, 211004, 15839, 42957, 49372, 169716, 10846, 430082, 11210, 1004561, 85127, 101536, 102904, 2715826, 20183, 190249, 208100

Offset

1,1

Comments

Diagonal of A190041

Links

R. H. Hardin, Table of n, a(n) for n = 1..142

Example

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

Crossrefs

Sequence in context: A218791 A320429 A319014 * A119459 A291463 A365542

Adjacent sequences: A190031 A190032 A190033 * A190035 A190036 A190037

Keyword

nonn

Author

R. H. Hardin May 04 2011

Status

approved