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A271407
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T(n,k)=Number of nXnXn triangular 0..k arrays with new values introduced in sequential zero-upwards order and exactly one inverted 2x2x2 triangle having values all equal.
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8
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0, 0, 0, 0, 0, 8, 0, 0, 14, 216, 0, 0, 15, 2592, 6048, 0, 0, 15, 7308, 896832, 203256, 0, 0, 15, 10368, 12228624, 685305792, 8627472, 0, 0, 15, 11160, 50382432, 64737526428, 1246974564672, 475098048, 0, 0, 15, 11244, 101140812, 1107382932648
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OFFSET
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1,6
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COMMENTS
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Table starts
......0.........0...........0.............0.............0..............0
......0.........0...........0.............0.............0..............0
......8........14..........15............15............15.............15
....216......2592........7308.........10368.........11160..........11244
...6048....896832....12228624......50382432.....101140812......133557336
.203256.685305792.64737526428.1107382932648.6623245236960.19403620120548
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LINKS
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EXAMPLE
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Some solutions for n=4 k=4
.....0........0........0........0........0........0........0........0
....1.1......1.0......1.0......1.1......1.1......1.1......1.1......1.2
...0.1.1....1.1.2....1.0.0....2.1.3....0.0.1....2.1.1....2.1.2....1.1.0
..0.1.0.2..3.1.3.4..0.2.0.1..0.0.4.1..1.0.0.1..0.1.0.2..2.1.1.2..1.1.3.0
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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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