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A086327 Number of factors over Q in the factorization of the Chebyshev polynomial of the second kind U_n(x). +0
2
1, 2, 2, 2, 4, 2, 3, 4, 4, 2, 5, 2, 4, 6, 4, 2, 7, 2 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Cf. A001227.

Sequence in context: A134058 A086973 A029658 this_sequence A069930 A114896 A066761

Adjacent sequences: A086324 A086325 A086326 this_sequence A086328 A086329 A086330

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 30 2003

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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