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A200985 Number of nX3 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other 1
10, 20, 92, 537, 140, 3157, 3604, 6692, 26168, 5408, 84188, 69613, 118244, 371475, 57479, 864418, 645309, 916025, 2639447, 387005, 5166751, 3514237, 4833175, 12896465, 1709869, 22408038, 14621090, 18653741, 47941297, 6213321, 76880715 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A200990
LINKS
EXAMPLE
Some solutions for n=4
..0..1..1....0..2..2....0..0..2....0..0..2....0..0..0....0..0..2....0..0..2
..0..2..2....0..2..3....1..1..4....1..2..3....1..1..2....1..2..4....0..1..2
..1..2..4....1..3..4....1..2..4....1..3..3....2..3..4....1..3..4....1..1..3
..3..3..4....1..3..4....3..3..4....4..4..4....3..4..4....1..3..4....3..4..4
CROSSREFS
Sequence in context: A131726 A276764 A215878 * A166641 A101244 A260743
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 25 2011
STATUS
approved

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Last modified July 15 18:49 EDT 2024. Contains 374333 sequences. (Running on oeis4.)