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A186909
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Number of (n+2)X5 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order
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1
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1276581035, 99241308567, 4813465754996, 171334955820947, 4805827783188400, 110909004238159456, 2169936652932512523, 36804096662464163093, 550615265988952206164, 7367827886026471340866, 89189622390253052611607
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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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Polynomial of degree 95 in n, see link.
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EXAMPLE
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Some solutions for 4X5
..0..0..0..0..6....0..0..0..1..2....0..0..0..0..1....0..0..0..0..2
..0..0..0..0..6....0..0..0..2..2....0..0..0..1..4....0..0..0..2..5
..0..0..0..6..4....0..0..0..3..4....0..0..0..2..2....0..0..0..4..0
..0..0..0..6..5....0..0..0..6..2....0..0..0..6..6....0..0..0..4..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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