A229100 Number of n X n 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(n+1) 0..3 array.

4, 256, 257984, 2868497664, 322730734532144, 372006541021912021312

Offset

1,1

Comments

Diagonal of A229105.

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A206832 A206894 A207284 * A060757 A136807 A057156

Adjacent sequences: A229097 A229098 A229099 * A229101 A229102 A229103

Keyword

nonn

Author

R. H. Hardin, Sep 13 2013

Status

approved