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A214379
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Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors
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0
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4, 32, 456, 11048, 445024, 29456216, 3183854216, 560099178288, 160085922224504, 74273794007636336, 55915904574400617168, 68294422849744215469224
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
....2......1......2......2......2......2......3......2......1......2......3
...3.2....2.0....0.2....2.3....3.1....3.1....1.3....0.2....2.0....2.1....2.3
..3.0.2..3.0.2..0.3.2..1.3.1..1.3.0..2.3.1..2.1.3..0.3.1..2.3.0..3.0.3..3.2.3
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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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