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Search: id:A162124
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| A162124 |
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Number of nXn binary arrays with rows and columns, considered as graycode numbers, in strictly increasing order, and no more than 7 ones in any row or column |
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+0
1
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| 2, 4, 25, 408, 18003, 2289232, 851979730, 906147342695, 2499603894160970
(list; graph; listen)
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