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A202938
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Number of (n+3)X10 binary arrays with consecutive windows of four bits considered as a binary number nondecreasing in every row and column
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1
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234256, 468980, 991196, 2121734, 4457228, 9044252, 17632598, 33032581, 59606286, 103928266, 175657382, 288668270, 462498350, 724174382, 1110491348, 1670825921, 2470576996, 3595336728, 5155907272, 7294290974, 10190795144, 14072406776
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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: a(n) = (1/151200)*n^10 + (1/840)*n^9 + (61/960)*n^8 + (47/28)*n^7 + (1307/50)*n^6 + (1296/5)*n^5 + (102078047/60480)*n^4 + (1210633/168)*n^3 + (91054793/3600)*n^2 + (2561054/35)*n + 126609
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EXAMPLE
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Some solutions for n=3
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1..0..0
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1..0..0
..0..0..0..0..0..0..0..1..1..1....0..0..0..0..0..0..1..1..1..0
..0..0..0..0..0..0..1..1..0..1....0..0..0..0..0..0..1..1..1..1
..0..0..0..0..0..0..1..0..0..1....0..0..0..0..0..0..1..1..1..1
..0..0..0..0..0..0..1..1..1..1....0..0..0..0..0..0..0..1..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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