A235664 Number of (n+1)X(4+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise

344668, 98555090, 25757334784, 6040295484562, 1320671371671620, 269317565241096158, 52050235423643851886, 9582488565308030993362, 1695034348280189390133594, 289593386301338653715741462

Offset

1,1

Comments

Column 4 of A235665

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

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

Crossrefs

Sequence in context: A235746 A235505 A235668 * A235429 A015321 A205420

Adjacent sequences: A235661 A235662 A235663 * A235665 A235666 A235667

Keyword

nonn

Author

R. H. Hardin, Jan 13 2014

Status

approved