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Search: id:A129551
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| A129551 |
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Number of ways to place n+2 queens and 2 pawns on an n X n board so that no two queens attack each other. |
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2
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| 0, 0, 0, 0, 0, 0, 4, 44, 280, 1304, 12452, 105012, 977664, 9239816, 90776620, 897446092
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