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A204702
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Number of nX5 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order
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1
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30, 5400, 362020, 29846373, 2389914827, 192759130113, 15521787839696, 1250634888842984, 100749784360671667, 8116764740949394264, 653904134820543785397, 52680223968250151357189, 4244049256144093743987455
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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=5
..0..0..1..2..0....0..0..1..2..2....0..0..1..0..0....0..0..1..2..0
..1..2..1..2..1....2..1..2..1..1....1..2..1..0..0....1..1..2..0..2
..2..1..0..0..1....1..2..1..1..2....2..0..0..2..1....2..2..1..2..2
..1..1..2..1..2....1..1..0..2..2....2..1..1..2..1....2..1..0..0..1
..2..2..1..1..0....2..2..0..1..0....0..0..1..0..2....0..1..0..1..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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