A201391 Number of nX6 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other

6, 715, 3364770, 539625139, 2308382992901, 264043688162138

Offset

1,1

Comments

Column 6 of A201393

Links

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

Example

Some solutions for n=2
..1..1..2..3..3..3....0..0..1..1..2..3....0..1..2..3..3..3....0..0..0..1..2..3
..2..2..1..0..0..0....0..3..1..3..2..2....1..0..0..1..2..2....2..2..3..1..3..1

Crossrefs

Sequence in context: A253120 A354250 A218559 * A289367 A014525 A289747

Adjacent sequences: A201388 A201389 A201390 * A201392 A201393 A201394

Keyword

nonn

Author

R. H. Hardin Nov 30 2011

Status

approved