id:A104543 - OEIS Search Results

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Number of distinct prime divisors of 55...559 (with n 5s).

+0
2

1, 2, 3, 2, 2, 3, 1, 2, 4, 3, 1, 3, 3, 2, 4, 4 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`The number of distinct prime divisors of 59 is 1 (prime).` `The number of distinct prime divisors of 559 is 2.` `The number of distinct prime divisors of 5559 is 3.`
	CROSSREFS	`Cf. A104484, A104483.` `Sequence in context: A072814 A145390 A128049 this_sequence A054988 A143393 A166497` `Adjacent sequences: A104540 A104541 A104542 this_sequence A104544 A104545 A104546`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 20 2005`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.