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A237154
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Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the minimum of every 2X2 subblock equal
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1
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111900, 16547988, 2178706440, 317411030268, 46125739204336, 6800622630757224, 1004492744125300076, 148720556234507966240, 22032685419605073404900, 3265529158483133171468524, 484070240704634990146069528
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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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FORMULA
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Empirical recurrence of order 84 (see link above)
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EXAMPLE
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Some solutions for n=1
..2..0..0..3..1....0..3..3..3..0....0..2..3..2..0....2..0..1..0..3
..0..3..2..0..2....0..3..0..2..3....3..0..2..0..3....2..3..0..3..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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