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 A133911 Number of prime factors (counted with multiplicity) of the period numbers defined by A133900. 10
 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; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA a(n)=A001222(A133900(n)). EXAMPLE a(6)=5, since A133900(6)=72=2*2*2*3*3. a(12)=8, since A133900(12)=864=2*2*2*2*2*3*3*3. CROSSREFS Cf. A000040, A001222, A100118, A046363, A133620, A133621, A133623, A133630, A133635. Cf. A133872, A133880, A133890, A133900, A133910, A134331. Sequence in context: A319822 A005127 A140773 * A069932 A056148 A304442 Adjacent sequences:  A133908 A133909 A133910 * A133912 A133913 A133914 KEYWORD nonn AUTHOR Hieronymus Fischer, Oct 20 2007 STATUS approved

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Last modified May 23 03:00 EDT 2019. Contains 323507 sequences. (Running on oeis4.)