A201386 - OEIS

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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

Table of n, a(n) for n=1..6.

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

Adjacent sequences: A201383 A201384 A201385 * A201387 A201388 A201389

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 30 2011

STATUS

approved