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A209969
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or two distinct values, and new values 0..3 introduced in row major order
9
0, 0, 0, 9, 26, 9, 162, 665, 665, 162, 1845, 13529, 25435, 13529, 1845, 17262, 235614, 870686, 870686, 235614, 17262, 144945, 3745144, 27112487, 53890394, 27112487, 3745144, 144945, 1138194, 56080379, 795773818, 3143493049, 3143493049
OFFSET
1,4
COMMENTS
Table starts
.......0.........0............9.............162...............1845
.......0........26..........665...........13529.............235614
.......9.......665........25435..........870686...........27112487
.....162.....13529.......870686........53890394.........3143493049
....1845....235614.....27112487......3143493049.......351689776895
...17262...3745144....795773818....176163769267.....38303320167422
..144945..56080379..22419183624...9585247795332...4082540189707757
.1138194.806021187.613401570788.510324389383430.427998742911795767
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..1..1....0..0..1..0....0..1..2..3....0..0..1..2....0..1..0..0
..1..0..1..1....2..0..0..0....0..1..2..2....1..1..1..1....0..0..0..0
..0..0..0..0....2..2..2..2....1..1..1..1....0..0..0..1....0..2..0..2
..0..2..0..0....2..1..1..1....2..2..2..2....1..0..0..0....0..0..2..0
..2..2..0..3....1..1..1..3....3..3..2..0....1..0..0..3....3..0..0..2
CROSSREFS
Sequence in context: A117755 A352788 A144114 * A144701 A255107 A022421
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 16 2012
STATUS
approved