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A235964
Number of (n+1)X(n+1) 0..3 arrays colored with the upper median value of each 2X2 subblock
0
256, 16744, 872370, 77914322, 13646551852, 4295779203418, 2687792393159216, 3200041068440354630
OFFSET
1,1
COMMENTS
Diagonal of A235972
EXAMPLE
Some solutions for n=2
..1..1..0....0..2..3....0..1..1....1..0..0....3..1..2....3..0..3....2..3..0
..0..0..0....0..3..1....0..2..3....3..2..0....3..2..1....0..2..3....1..1..1
..0..2..2....3..1..1....0..0..3....1..3..2....1..0..0....1..0..0....0..3..2
CROSSREFS
Sequence in context: A224283 A224206 A238064 * A206319 A216397 A090650
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2014
STATUS
approved