id:A133911 - OEIS Search Results

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Number of prime factors (counted with multiplicity) of the period numbers defined by A133900.

+0
11

0, 2, 2, 4, 2, 5, 2, 6, 4, 6, 2, 8, 2, 6, 5, 8, 2, 9, 2, 8, 5, 7, 2, 10, 4, 7, 6, 8, 2, 12, 2, 10, 6, 8, 5, 12, 2, 8, 6, 11, 2, 12, 2, 9, 8, 8, 2, 13, 4, 10, 6, 9, 2, 12, 5, 11, 6, 8, 2, 14, 2, 8, 8, 12, 5, 13, 2, 10, 6, 13, 2, 14, 2, 9, 8, 10, 5, 13, 2, 13, 8, 10, 2, 17, 5, 9, 7, 11, 2, 16, 5, 10, 7, 9 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=A001222(A133900(n)).`
	EXAMPLE	`a(6)=5, since A133900(6)=72=22233.` `a(12)=8, since A133900(12)=864=2222233*3.`
	CROSSREFS	`Cf. A000040, A001222, A100118, A046363, A133620, A133621, A133623, A133630, A133635.` `Cf. A133872, A133880, A133890, A133900, A133910, A134331.` `Sequence in context: A054134 A005127 A140773 this_sequence A069932 A056148 A057567` `Adjacent sequences: A133908 A133909 A133910 this_sequence A133912 A133913 A133914`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Oct 20 2007`

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.

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