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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 1
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 (list; graph; refs; listen; history; text; internal format)
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 A192616

Adjacent sequences:  A190031 A190032 A190033 * A190035 A190036 A190037

KEYWORD

nonn

AUTHOR

R. H. Hardin May 04 2011

STATUS

approved

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Last modified October 26 02:14 EDT 2021. Contains 348256 sequences. (Running on oeis4.)