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A197992
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Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,3,2,1,0,0,0 for x=0,1,2,3,4,5,6
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0
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OFFSET
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1,2
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COMMENTS
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Every 0 is next to 0 2's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 0's, every 5 is next to 5 0's, every 6 is next to 6 0's
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LINKS
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EXAMPLE
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Some solutions with all values from 0 to 6 for 7X7X7
........0..............0..............0..............0..............0
.......0.0............0.0............0.0............0.4............0.0
......0.0.0..........0.6.0..........4.0.0..........4.0.0..........0.0.0
.....0.0.6.0........4.0.0.0........0.0.6.0........0.0.6.0........0.5.4.0
....0.0.0.0.1......0.0.5.1.1......0.5.0.0.1......4.0.0.0.1......0.0.0.1.1
...4.0.5.1.3.2....0.6.0.0.3.2....1.1.0.1.3.2....0.0.5.1.3.2....0.0.6.0.3.2
..0.0.0.0.1.2.2..0.0.0.0.1.2.2..0.3.1.0.1.2.2..0.4.0.0.1.2.2..0.0.0.0.1.2.2
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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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