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A221435
Number of nX5 1..(max n,5) arrays with each row and column having unrepeated values
0
120, 5280, 66240, 161280, 161280, 812851200, 20449013760000, 921456860096102400, 68695056598964266598400
OFFSET
1,1
COMMENTS
Column 5 of A221438
EXAMPLE
Some solutions for n=3
..3..5..2..1..4....1..4..2..5..3....1..3..4..2..5....5..4..1..2..3
..1..3..5..4..2....2..3..4..1..5....2..4..1..5..3....2..1..5..3..4
..2..1..4..5..3....4..5..3..2..1....3..5..2..1..4....4..3..2..5..1
CROSSREFS
Sequence in context: A246613 A031145 A126245 * A229636 A282431 A008661
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 16 2013
STATUS
approved