id:A091374 - OEIS Search Results

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Number of numbers <= n having less prime factors than the value of their smallest prime factor.

+0
5

1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 30, 30, 31, 31, 32, 32, 33, 33, 34, 34, 35, 35 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = #{m: A001222(m)<A020639(m), m<=n};` `A091372(n) + A091373(n) + a(n) = n.`
	CROSSREFS	`Cf. A091377, A091371.` `Sequence in context: A067086 A005410 A120835 this_sequence A065603 A084242 A156261` `Adjacent sequences: A091371 A091372 A091373 this_sequence A091375 A091376 A091377`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 04 2004`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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