A237376 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

81, 2064, 104248, 11767448, 2375768088, 940730849096, 766079297989600, 1929455276182592448

Offset

1,1

Comments

Diagonal of A237384

Links

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

Example

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

Crossrefs

Sequence in context: A238237 A350870 A282861 * A296577 A237316 A237722

Adjacent sequences: A237373 A237374 A237375 * A237377 A237378 A237379

Keyword

nonn

Author

R. H. Hardin, Feb 07 2014

Status

approved