id:A092523 - OEIS Search Results

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Number of distinct prime factors of n-th odd number.

+0
3

0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 3, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 2, 2, 1, 3, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 3, 1, 1, 2, 2 (list; graph; listen)

	OFFSET	`1,8`
	COMMENT	`a(n) = A001221(2*n-1).`
	LINKS	`Eric Weisstein's World of Mathematics, Odd Number` `Eric Weisstein's World of Mathematics, Distinct Prime Factors`
	CROSSREFS	`Cf. A091304.` `Sequence in context: A097588 A030382 A120889 this_sequence A120891 A034002 A025430` `Adjacent sequences: A092520 A092521 A092522 this_sequence A092524 A092525 A092526`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 07 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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