A201391 Number of n X 6 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

Cf. A201393.

Sequence in context: A253120 A354250 A218559 * A374331 A289367 A014525

Adjacent sequences: A201388 A201389 A201390 * A201392 A201393 A201394

Keyword

nonn

Author

R. H. Hardin, Nov 30 2011

Status

approved