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A059404
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Numbers n such that n/[largest power of squarefree kernel] is larger than 1.
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8
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12, 18, 20, 24, 28, 40, 44, 45, 48, 50, 52, 54, 56, 60, 63, 68, 72, 75, 76, 80, 84, 88, 90, 92, 96, 98, 99, 104, 108, 112, 116, 117, 120, 124, 126, 132, 135, 136, 140, 144, 147, 148, 150, 152, 153, 156, 160, 162, 164, 168, 171, 172, 175, 176, 180, 184, 188, 189
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Complement of A072774 (powers of squarefree numbers).
Also numbers n=p(1)^alfa(1)* ... * p(r)^alfa(r) such that RootMeanSquare(alfa(1),...,alfa(r)) is not an integer. [From Ctibor O. Zizka (c.zizka(AT)email.cz), Sep 19 2008]
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LINKS
| Donald Alan Morrison, Table of n, a(n) for n = 1..10000
Donald Alan Morrison, SAGE program
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FORMULA
| A062760(a[n])>1 i.e. a(n)/(A007947(a[n])^A051904(a[n])=a(n)/A062759(n)>1
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EXAMPLE
| n=440 is here because n=2.2.2.5.11, its sqf-kernel=110, quotient=4>1.
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CROSSREFS
| Cf. A062759, A062760, A007947, A003557, A051904.
Sequence in context: A126706 A123711 A200511 * A177425 A182854 A005101
Adjacent sequences: A059401 A059402 A059403 * A059405 A059406 A059407
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Jul 18 2001
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