A201431 Number of nX7 0..2 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other

3, 560, 70192, 96745050, 44447452442, 6052024146349, 6095310292410589

Offset

1,1

Comments

Column 7 of A201432

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A158247 A034314 A265459 * A171359 A002306 A087574

Adjacent sequences: A201428 A201429 A201430 * A201432 A201433 A201434

Keyword

nonn

Author

R. H. Hardin Dec 01 2011

Status

approved