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A186835
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Number of (n+2)X6 binary arrays with 3X3 subblock sums nondecreasing rightwards and downwards.
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1
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74088, 1075071, 15478835, 209888936, 1919555447, 17494747887, 156721188699, 1078797163411, 7406777253003, 50517478604280, 286738174613422, 1624495522791359, 9174202859579047, 45367559809783120, 224059718533213551
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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 4X6
..0..0..0..0..1..1....0..0..0..1..0..0....0..0..0..0..0..1....0..0..1..0..0..1
..0..1..0..1..1..0....0..0..0..1..1..1....0..1..0..0..1..1....0..0..0..1..1..1
..0..1..1..0..1..0....0..0..1..0..0..1....0..1..1..0..1..0....0..1..1..0..0..1
..0..1..0..0..1..1....0..1..1..0..0..1....0..0..0..1..1..0....0..1..0..0..1..1
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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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