A228974 Number of nX4 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X5 0..2 array.

81, 6387, 485397, 32175213, 2056956837, 129504297807, 8110003331559, 506820492353703, 31647512289810393, 1975556815959556587, 123306671912401161489

Offset

1,1

Comments

Column 4 of A228977.

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A205887 A205199 A250612 * A178513 A016948 A206993

Adjacent sequences: A228971 A228972 A228973 * A228975 A228976 A228977

Keyword

nonn

Author

R. H. Hardin, Sep 10 2013

Status

approved