id:A086369 - OEIS Search Results

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Number of factors over Q in the factorization of T_n(x) - 1 where T_n(x) is the Chebyshev polynomial of the first kind.

+0
1

1, 2, 3, 4, 3, 6, 3, 6, 5, 6, 3, 10, 3, 4, 9, 8, 3, 10, 3, 10 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`If p is an odd prime then a(p) = 3.`
	CROSSREFS	`Cf. A086374.` `Adjacent sequences: A086366 A086367 A086368 this_sequence A086370 A086371 A086372` `Sequence in context: A141128 A078908 A080383 this_sequence A092089 A117659 A079065`
	KEYWORD	`nonn`
	AUTHOR	`Yuval Dekel (dekelyuval(AT)hotmail.com), Sep 08 2003`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.