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A257425
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Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
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1
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1700100, 4137316, 18009368, 64652177, 121832476, 356678661, 1037269100, 2359203628, 7099788830, 18202585668, 46382073874, 125815055340, 344959665026, 927065687056, 2543518276740, 6912822214852, 18798048722510, 51304587059146
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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=1
..0..0..0..0..1..1..1..1..1....0..0..0..0..1..1..1..0..1
..0..0..0..0..0..0..1..1..0....0..0..1..1..1..1..1..1..0
..0..1..0..0..1..1..1..1..1....1..0..1..1..0..1..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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