A237747 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with the (lower) medians of each row and column unequal to its neighbors

76784, 3160428, 3160428, 144512160, 508303264, 144512160, 6244498728, 81788657196, 81788657196, 6244498728, 273236788672, 13682554208420

Offset

1,1

Comments

Table starts

......76784.....3160428...144512160.....6244498728.273236788672

....3160428...508303264.81788657196.13682554208420

..144512160.81788657196

.6244498728

Links

Table of n, a(n) for n=1..12.

Example

Some solutions for n=1 k=4
..0..0..0..3..2..2....0..0..2..1..3..1....0..0..1..2..1..2....0..0..1..0..1..0
..1..0..1..2..1..2....1..0..0..3..3..0....1..0..0..3..0..1....1..0..1..3..3..3
..1..0..1..0..0..1....1..0..1..2..1..2....1..0..1..1..1..2....1..0..0..2..1..0

Crossrefs

Sequence in context: A046720 A258606 A152498 * A237746 A254171 A254164

Adjacent sequences: A237744 A237745 A237746 * A237748 A237749 A237750

Keyword

nonn,tabl

Author

R. H. Hardin, Feb 12 2014

Status

approved