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A265002
Number of nX5 arrays of permutations of 5 copies of 0..n-1 with rows and columns nondecreasing.
0
1, 3, 21, 261, 4919, 120096, 3558888, 123026475, 4817478608, 209081118730, 9892111117243
OFFSET
1,2
COMMENTS
Column 5 of A265005.
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2015
STATUS
approved