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A229773 Number of n X n 0..5 arrays with rows in lexicographically nondecreasing order and columns in nonincreasing order 0
6, 266, 103222, 637396928, 81937334158292, 245200063296427870294, 18316874320807782299001320802 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A229774
LINKS
EXAMPLE
Some solutions for n=3
..4..1..0....2..1..1....4..2..0....1..1..0....3..2..2....2..1..0....2..0..0
..4..1..4....2..5..1....4..4..2....2..1..4....3..5..0....3..4..2....3..5..2
..5..3..0....5..3..1....5..1..2....3..3..3....5..2..1....5..2..1....4..1..4
CROSSREFS
Sequence in context: A033289 A244493 A221900 * A193983 A348701 A233234
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 29 2013
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)