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Search: id:A086832
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| A086832 |
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Number of ways to tile an n X n board having a black border with the following 1 X 1 tiles: bbbb, bbww, wbbw, bwwb, wwbb, where the colors are read clockwise around each tile. |
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2
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| 1, 2, 5, 36, 324, 7041, 233265, 16038658, 1884307184, 426645198097, 173238487743952
(list; graph; listen)
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