id:A105972 - OEIS Search Results

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Number of distinct prime divisors of 88...881 (with n 8s).

+0
2

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

	OFFSET	`0,3`
	EXAMPLE	`The number of distinct prime divisors of 81 is 1.` `The number of distinct prime divisors of 881 is 1 (prime).` `The number of distinct prime divisors of 8881 is 2.`
	CROSSREFS	`Cf. A104564, A104517, A104659.` `Sequence in context: A123551 A029717 A135567 this_sequence A011030 A005681 A049848` `Adjacent sequences: A105969 A105970 A105971 this_sequence A105973 A105974 A105975`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 28 2005`

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Last modified August 28 11:49 EDT 2008. Contains 143094 sequences.