A220109 T(n,k)=Number of nXk arrays of the minimum or maximum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nXk array

4, 16, 16, 56, 256, 56, 250, 4020, 4020, 250, 984, 64862, 252520, 64862, 984, 3888, 1029672, 16187862, 16187862, 1029672, 3888, 15798, 16468836, 1028824446, 4160361190, 1028824446, 16468836, 15798, 63092, 262860066, 65676456950

Offset

1,1

Comments

Table starts

.....4.......16.........56........250........984........3888.....15798.63092

....16......256.......4020......64862....1029672....16468836.262860066

....56.....4020.....252520...16187862.1028824446.65676456950

...250....64862...16187862.4160361190

...984..1029672.1028824446

..3888.16468836

.15798

Links

Table of n, a(n) for n=1..31.

Example

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

Crossrefs

Sequence in context: A223801 A336938 A232516 * A207283 A207479 A207535

Adjacent sequences: A220106 A220107 A220108 * A220110 A220111 A220112

Keyword

nonn,tabl

Author

R. H. Hardin Dec 05 2012

Status

approved