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A049237
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n/EulerPhi[n] for n in A007694.
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5
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1, 2, 2, 3, 2, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| Sarkozy A. and Suranyi J., Number Theory Problem Book (in Hungarian), Tankonyvkiado, Budapest, 1972.
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FORMULA
| n/EulerPhi(n) is integer iff n=1 or n=2^w*3^u for w=1, 2, ... and u=0, 1, 2, ...
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EXAMPLE
| For powers of 2 the quotient is 2. a[ 95 ]=124416/Phi[ 124416 ]=124416/41472=3.
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CROSSREFS
| Cf. A007694.
Sequence in context: A174296 A163178 A029374 * A162361 A171135 A073855
Adjacent sequences: A049234 A049235 A049236 * A049238 A049239 A049240
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu)
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