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A202931
T(n,k)=Number of nXk 0..2 arrays with adjacent row and column sums unequal
7
3, 6, 6, 12, 52, 12, 24, 352, 352, 24, 48, 2444, 8460, 2444, 48, 96, 17508, 194636, 194636, 17508, 96, 192, 124340, 4439916, 14394092, 4439916, 124340, 192, 384, 872940, 100236532, 1032147416, 1032147416, 100236532, 872940, 384, 768, 6112832
OFFSET
1,1
COMMENTS
Table starts
....3........6..........12............24.............48.............96
....6.......52.........352..........2444..........17508.........124340
...12......352........8460........194636........4439916......100236532
...24.....2444......194636......14394092.....1032147416....72961197604
...48....17508.....4439916....1032147416...231197740500.50721408178292
...96...124340...100236532...72961197604.50721408178292
..192...872940..2247406834.5108912536716
..384..6112832.50175952564
..768.42822036
.1536
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..1....0..2..1....0..2..1....0..2..0....0..1..2....1..0..2....0..2..1
..1..1..1....1..1..2....1..2..2....2..0..1....0..0..0....2..1..1....2..2..1
..2..0..2....0..2..0....2..1..0....2..2..2....0..1..1....0..2..0....0..1..1
..1..0..2....2..2..2....0..0..1....0..2..0....2..1..1....0..1..0....0..1..2
CROSSREFS
Diagonal is A202649
Sequence in context: A208445 A208796 A319867 * A240250 A239424 A119306
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Dec 26 2011
STATUS
approved