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

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

R. H. Hardin, Table of n, a(n) for n = 1..84

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

Adjacent sequences: A183591 A183592 A183593 * A183595 A183596 A183597

Keyword

nonn,tabl

Author

R. H. Hardin Jan 05 2011

Status

approved