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A271433
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Number of nXnXn triangular 0..2 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.
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0
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0, 0, 12, 864, 41328, 2009952, 116220672, 8608449792, 850781715456, 114969127987200, 21579927922212864, 5686939126548676608, 2120212910213354962944
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OFFSET
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1,3
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
.....0........0........0........0........0........0........0........0
....1.0......1.0......1.1......1.0......0.1......0.0......1.0......1.2
...1.1.1....1.1.0....1.0.2....1.0.1....0.0.2....1.2.2....2.1.0....1.1.2
..1.2.0.1..1.0.1.2..0.0.0.0..2.0.1.1..0.2.0.2..1.2.0.2..0.0.0.0..1.2.2.0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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