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Search: id:A076437
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| A076437 |
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Square board sizes for which the lights out problem has a unique solution (counting solutions differing only by rotation and reflection as equivalent). |
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5
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| 1, 2, 3, 5, 6, 7, 8, 10, 12, 13, 15, 17, 18
(list; graph; listen)
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