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A201386 Number of n X n 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other 0
4, 8, 1606, 312604, 9842070647, 264043688162138 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A201393
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2....0..0..1....0..1..2....0..3..3....0..2..3....0..0..3....0..1..1
..1..0..2....1..2..2....2..1..2....2..1..1....2..2..1....1..1..2....2..0..0
..3..3..1....2..3..3....3..3..0....3..0..2....3..1..0....3..3..2....2..3..3
CROSSREFS
Sequence in context: A013442 A013441 A013445 * A009511 A057841 A069883
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 30 2011
STATUS
approved

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Last modified May 29 04:03 EDT 2023. Contains 363029 sequences. (Running on oeis4.)