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Search: id:A162059
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| A162059 |
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Number of nXn symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order, and no more than 4 ones in any row or column |
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1
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| 2, 6, 18, 100, 691, 6729, 78478, 1102775, 17908058, 330070220, 6865933571, 158038101259, 4006358927524, 110885649721312
(list; graph; listen)
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