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Search: id:A086389
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| A086389 |
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Number of factors over Q in the factorization of U_n(x) - 1 where U_n(x) is the Chebyshev polynomial of the second kind. |
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+0
1
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| 1, 1, 2, 3, 2, 3, 3, 4, 3, 4, 2, 6, 4, 3, 4, 6, 2, 6, 4, 6
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