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A201428 Number of nX4 0..2 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other 1
3, 76, 622, 33740, 561271, 2740779, 96745050, 1042095316, 3442865393, 88529711419, 713489134252, 1807746313421, 37066136105268, 241902857874013, 503427752952568, 8681256219590301, 48116992979572975, 85825473881325409 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A201432

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..37

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A037110 A168385 A042267 * A141103 A300386 A054747

Adjacent sequences:  A201425 A201426 A201427 * A201429 A201430 A201431

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 01 2011

STATUS

approved

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Last modified May 24 18:27 EDT 2022. Contains 354043 sequences. (Running on oeis4.)