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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 (list; table; graph; refs; listen; history; text; internal format)
 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: A151345 A095652 A132689 * A140790 A137033 A045526 Adjacent sequences:  A183591 A183592 A183593 * A183595 A183596 A183597 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 05 2011 STATUS approved

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