login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164858 a(n) = largest prime dividing A164857(n). a(1)=1. 2
1, 2, 3, 2, 5, 3, 7, 2, 5, 13, 13, 3, 19, 7, 5, 2, 23, 3, 31, 7, 37, 37, 37, 3, 43, 43, 43, 43, 43, 5, 53, 2, 61, 61, 7, 3, 61, 73, 73, 73, 73, 79, 79, 83, 83, 83, 83, 3, 89, 89, 89, 89, 89, 3, 103, 103, 103, 103, 103, 5, 113, 113, 13, 2, 113, 113, 113, 131, 131, 131, 131, 3, 139 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
A164857(n) is divisible by every prime from 2 to A164858(n).
LINKS
CROSSREFS
Sequence in context: A039635 A303077 A347619 * A192330 A320028 A327076
KEYWORD
nonn
AUTHOR
Leroy Quet, Aug 28 2009
EXTENSIONS
Extended by Ray Chandler, Mar 14 2010
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 23 10:38 EDT 2024. Contains 374547 sequences. (Running on oeis4.)