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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.
0
4, 256, 257984, 2868497664, 322730734532144, 372006541021912021312
OFFSET
1,1
COMMENTS
Diagonal of A229105.
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 13 2013
STATUS
approved