A235562 Number of (n+1)X(3+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise

3199, 113391, 3793647, 114840543, 3160338477, 79254774059, 1838291205271, 39837425003517, 815567201782743, 15900415277347251, 297370038960071657, 5364998587487962169, 93828515658470993833, 1596984019365715055277

Offset

1,1

Comments

Column 3 of A235565

Links

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

Example

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

Crossrefs

Sequence in context: A211840 A235786 A235781 * A269114 A035896 A224646

Adjacent sequences: A235559 A235560 A235561 * A235563 A235564 A235565

Keyword

nonn

Author

R. H. Hardin, Jan 12 2014

Status

approved