A236489 Number of (n+1)X(5+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.

167095, 34149421, 6339553813, 1098468030593, 182308906034159, 29352647489506731, 4636588642195617443, 723366272707534050409, 111992223008008443804229, 17257057210291847731653735

Offset

1,1

Comments

Column 5 of A236490

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

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

Crossrefs

Sequence in context: A187170 A047829 A236494 * A235436 A262802 A247994

Adjacent sequences: A236486 A236487 A236488 * A236490 A236491 A236492

Keyword

nonn

Author

R. H. Hardin, Jan 27 2014

Status

approved