A265002 Number of nX5 arrays of permutations of 5 copies of 0..n-1 with rows and columns nondecreasing.

1, 3, 21, 261, 4919, 120096, 3558888, 123026475, 4817478608, 209081118730, 9892111117243

Offset

1,2

Comments

Column 5 of A265005.

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=4
..0..0..0..1..2....0..0..0..0..1....0..0..0..1..2....0..0..0..2..2
..0..1..1..2..2....0..1..1..2..3....0..1..2..2..2....0..0..1..2..2
..0..1..2..3..3....1..2..2..3..3....0..1..2..3..3....1..1..1..3..3
..1..2..3..3..3....1..2..2..3..3....1..1..3..3..3....1..2..3..3..3

Crossrefs

Cf. A265005.

Sequence in context: A232470 A349961 A251573 * A012131 A322224 A221094

Adjacent sequences: A264999 A265000 A265001 * A265003 A265004 A265005

Keyword

nonn

Author

R. H. Hardin, Nov 29 2015

Status

approved