login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A238162 Least common multiple of the prime factors of n, each increased by 1. 0
3, 4, 3, 6, 12, 8, 3, 4, 6, 12, 12, 14, 24, 12, 3, 18, 12, 20, 6, 8, 12, 24, 12, 6, 42, 4, 24, 30, 12, 32, 3, 12, 18, 24, 12, 38, 60, 28, 6, 42, 24, 44, 12, 12, 24, 48, 12, 8, 6, 36, 42, 54, 12, 12, 24, 20, 30, 60, 12, 62, 96, 8, 3, 42, 12, 68, 18, 24, 24, 72, 12, 74, 114, 12, 60, 24, 84, 80, 6, 4, 42, 84, 24, 18, 132, 60, 12, 90, 12, 56, 24, 32, 48, 60, 12, 98, 24, 12, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

If n is prime, then a(n) = n + 1. - Wesley Ivan Hurt, Apr 05 2014

LINKS

Table of n, a(n) for n=2..100.

EXAMPLE

The prime factors of 6 are 2 and 3, which become 3 and 4 when respectively increased by 1, and lcm(3, 4) = 12. Therefore, a(6) = 12.

CROSSREFS

Sequence in context: A061800 A218789 A324335 * A048250 A323363 A073181

Adjacent sequences:  A238159 A238160 A238161 * A238163 A238164 A238165

KEYWORD

nonn

AUTHOR

Joseph L. Pe, Feb 18 2014

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 6 10:14 EDT 2020. Contains 336245 sequences. (Running on oeis4.)