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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A104353 Sum of divisors of A104350(n). 1
3, 12, 28, 168, 546, 4368, 9360, 28800, 148800, 1785600, 5401440, 75620160, 53879364, 0, 2711348640, 5603453856, 100862169408, 303420079872, 6068401597440, 3038090799, 7440, 213199354368000, 2362959510912000 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

a(n) = A000203(A104350(n)).

LINKS

Table of n, a(n) for n=2..24.

R. Zumkeller, Products of largest prime factors of numbers <= n

CROSSREFS

Cf. A104352, A062569.

Sequence in context: A026557 A124052 A215640 * A001860 A199035 A101459

Adjacent sequences:  A104350 A104351 A104352 * A104354 A104355 A104356

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 06 2005

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 20 01:06 EST 2018. Contains 299357 sequences. (Running on oeis4.)