A237316 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

81, 2108, 107572, 12331794, 2926294296, 1321644953390, 1305716399716870, 4234337234201829714

Offset

1,1

Comments

Diagonal of A237324

Links

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

Example

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

Crossrefs

Sequence in context: A282861 A237376 A296577 * A237722 A250436 A237545

Adjacent sequences: A237313 A237314 A237315 * A237317 A237318 A237319

Keyword

nonn

Author

R. H. Hardin, Feb 06 2014

Status

approved