The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History forA052409

(Bold, blue-underlined text is anaddition; faded, red-underlined text is a~~deletion~~.)
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A052409

a(n) = largest integer power m for which a representation of the form n = k^m exists (for some k).
(history; published version)

#58byJoerg Arndtat Wed Aug 31 10:51:21 EDT 2022

STATUS

reviewed

approved

#57byMichel Marcusat Wed Aug 31 09:57:28 EDT 2022

STATUS

proposed

reviewed

#56byChai Wah Wuat Wed Aug 31 09:52:22 EDT 2022

STATUS

editing

proposed

#55byChai Wah Wuat Wed Aug 31 09:52:18 EDT 2022

PROG

(Python)

from math import gcd

from sympy import factorint

defA052409(n): return gcd(*factorint(n).values()) #Chai Wah Wu,Aug 31 2022

STATUS

approved

editing

#54byMichel Marcusat Tue Nov 30 08:38:05 EST 2021

LINKS

Cao Hui-Zhong, <a href= "http://www.math.bas.bg/infres/MathBalk/MB-05/MB-05-105-108.pdf" >The Asymptotic Formulas Related to Exponents in Factoring Integers</a>, Math. Balkanica, Vol. 5 (1991), Fasc. 2.

KEYWORD

nonn,changed

nonn

STATUS

editing

approved

#53byMichel Marcusat Tue Nov 30 08:36:38 EST 2021

LINKS

STATUS

approved

editing

#52bySusanna Cuylerat Tue Jun 09 07:23:05 EDT 2020

STATUS

proposed

approved

#51byGus Wisemanat Tue Jun 09 06:46:44 EDT 2020

STATUS

editing

proposed

#50byGus Wisemanat Tue Jun 09 06:38:24 EDT 2020

COMMENTS

Positions of 1's areA007916.SmallestbaseisgivenbyA052410.-Gus Wiseman,Jun06092020

CROSSREFS

Cf.A000005,A000961,A001597,A052410,A303386,A327501.

#49byGus Wisemanat Sat Jun 06 00:53:20 EDT 2020

COMMENTS

Positions of 1's areA007916.-Gus Wiseman,Jun 06 2020

STATUS

approved

editing