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A222996
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T(n,k) = Number of n X k 0..2 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.
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4
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3, 9, 9, 27, 50, 27, 81, 222, 222, 81, 243, 867, 3510, 867, 243, 729, 3123, 35845, 35845, 3123, 729, 2187, 10660, 440451, 703848, 440451, 10660, 2187, 6561, 35064, 4336850, 19187708, 19187708, 4336850, 35064, 6561, 19683, 112373, 45780150, 342820859
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OFFSET
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1,1
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COMMENTS
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Table starts
.....3......9........27.........81..........243..........729..........2187
.....9.....50.......222........867.........3123........10660.........35064
....27....222......3510......35845.......440451......4336850......45780150
....81....867.....35845.....703848.....19187708....342820859....6895486778
...243...3123....440451...19187708...2061242739.107454380377.8271604953861
...729..10660...4336850..342820859.107454380377
..2187..35064..45780150.6895486778
..6561.112373.429855929
.19683.353517
.59049
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..2..2..1..1....2..0..0..1....2..2..1..2....2..2..2..0....2..1..2..0
..0..0..0..0....2..2..0..2....1..0..1..1....1..0..0..1....2..1..0..2
..1..1..1..2....1..1..1..2....0..0..0..1....0..0..0..1....0..0..2..1
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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