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Search: id:A078993
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| A078993 |
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Starting at the chess position shown, a(n) is the number of ways Black can make n consecutive moves, followed by a checkmate in one move by White. |
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| 0, 0, 0, 0, 0, 2, 11, 35, 118, 354, 1080, 3207, 9564, 28340, 84065, 248990, 737659, 2184639, 6470361, 19162095, 56749647, 168064304, 497724596, 1474011695, 4365289531, 12927804291, 38285696466, 113383077705, 335783959965, 994424075606, 2944986563117, 8721576611648
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