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A183594
T(n,k)=1/24 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock containing exactly three distinct values
10
6, 56, 56, 520, 1243, 520, 4832, 27380, 27380, 4832, 44896, 603766, 1427084, 603766, 44896, 417152, 13311808, 74491726, 74491726, 13311808, 417152, 3875968, 293504588, 3887550226, 9207834547, 3887550226, 293504588, 3875968, 36013568
OFFSET
1,1
COMMENTS
Table starts
..........6.............56.................520..................4832
.........56...........1243...............27380................603766
........520..........27380.............1427084..............74491726
.......4832.........603766............74491726............9207834547
......44896.......13311808..........3887550226.........1137874208678
.....417152......293504588........202888369698.......140620157014391
....3875968.....6471298096......10588548225946.....17377952662176322
...36013568...142681644568.....552606468835138...2147583158143435461
..334620160..3145899035840...28840014212057954.265400246990014695972
.3109124096.69361976167600.1505133360863436226
LINKS
EXAMPLE
Some solutions with a(1,1)=0 for 4X3
..0..0..0....0..2..2....0..1..2....0..1..2....0..2..1....0..2..0....0..0..2
..3..1..2....0..3..0....3..1..0....3..3..1....2..1..3....1..2..1....3..1..0
..0..1..0....2..0..2....3..2..0....0..2..3....3..1..2....3..2..0....3..2..0
..3..0..3....2..3..2....3..1..0....3..3..0....2..3..1....0..2..1....3..0..1
CROSSREFS
Sequence in context: A323876 A249672 A255853 * A140790 A335217 A335199
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved