A235434 Number of (n+1)X(3+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise

3987, 169041, 6802225, 253925273, 9047860107, 309625276947, 10293725576425, 334790471121909, 10718052744631609, 339260621761436423, 10653772734673672123, 332731146894858117557, 10353107085515010326553

Offset

1,1

Comments

Column 3 of A235437

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A159216 A236492 A236487 * A200848 A235739 A236079

Adjacent sequences: A235431 A235432 A235433 * A235435 A235436 A235437

Keyword

nonn

Author

R. H. Hardin, Jan 10 2014

Status

approved