login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A056603 Squarefree kernels of distinct values of LCM[1,..,m] (A051451). 0
1, 2, 6, 6, 30, 210, 210, 210, 2310, 30030, 30030, 510510, 9699690, 223092870, 223092870, 223092870, 6469693230, 200560490130, 200560490130, 7420738134810, 304250263527210, 13082761331670030, 614889782588491410 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

EXAMPLE

Only values of A002110 arise with repetitions, but the sequence is not identical to A034386. It is more compact than A034386, but still not a repetition-free primorial sequence. E.g. 1,2,6,30,210,2310,30030,..times occurs in A034386 1,1,2,2,4,2,4,2,4,..while the same values arise here 1,1,2,1,3,1,2,1,1,.. times. This sequence represents a transition between A034386 and the more compact A002110.

CROSSREFS

A002110, A034386, A003418, A051451.

Sequence in context: A123144 A179215 A069260 * A019198 A155164 A155948

Adjacent sequences:  A056600 A056601 A056602 * A056604 A056605 A056606

KEYWORD

nonn

AUTHOR

Labos Elemer, Aug 07 2000

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified December 21 12:18 EST 2014. Contains 252320 sequences.