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A201387 Number of nX2 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other 1
6, 8, 137, 98, 1416, 715, 9424, 3977, 47509, 17474, 195020, 65271, 685365, 212409, 2127347, 621431, 5970292, 1659237, 15403848, 4110026, 37018776, 9536251, 83699540, 20927871, 179497978, 43720826, 367499724, 87495195, 722212122 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A201393

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..78

EXAMPLE

Some solutions for n=10

..0..0....0..0....0..1....0..1....0..1....0..0....0..0....0..1....0..0....0..0

..0..2....0..0....0..2....0..1....0..1....0..1....0..0....0..2....0..3....0..1

..1..3....0..2....1..0....0..2....0..3....0..1....0..3....0..2....1..0....0..1

..2..0....1..1....1..0....1..0....0..3....0..3....1..1....0..3....1..1....0..2

..2..1....1..2....1..1....1..2....1..1....1..2....1..1....1..2....1..2....1..2

..2..1....2..2....2..0....1..2....2..1....1..2....2..1....1..3....2..1....1..2

..2..3....2..3....2..3....2..0....2..2....1..3....2..3....2..0....2..3....2..3

..3..0....3..1....2..3....2..3....2..2....3..2....3..2....2..3....3..0....2..3

..3..1....3..1....2..3....3..3....3..0....3..2....3..2....3..1....3..2....3..1

..3..1....3..3....3..3....3..3....3..3....3..2....3..2....3..1....3..2....3..3

CROSSREFS

Sequence in context: A013239 A013235 A257869 * A013236 A013242 A169971

Adjacent sequences: A201384 A201385 A201386 * A201388 A201389 A201390

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 30 2011

STATUS

approved

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Last modified March 26 12:18 EDT 2023. Contains 361549 sequences. (Running on oeis4.)