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

3, 76, 622, 33740, 561271, 2740779, 96745050, 1042095316, 3442865393, 88529711419, 713489134252, 1807746313421, 37066136105268, 241902857874013, 503427752952568, 8681256219590301, 48116992979572975, 85825473881325409

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