A250612 Number of (n+1)X(n+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column

81, 6166, 1690656, 1223112064, 2643367969909, 16037155132964687, 287962971695057053653, 15262784987977280564078690

Offset

1,1

Comments

Diagonal of A250620

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A036354 A205887 A205199 * A228974 A178513 A016948

Adjacent sequences: A250609 A250610 A250611 * A250613 A250614 A250615

Keyword

nonn

Author

R. H. Hardin, Nov 26 2014

Status

approved