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Search: id:A145247
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| A145247 |
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1/6 of the number of 6-colorings of an n X n array symmetric under 180 degree rotation. |
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1
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| 1, 5, 445, 38945, 61129245, 94304065705, 2610924486436445, 71050577480317387425
(list; graph; listen)
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