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!)
A133797 Apply the map n -> sigma(phi(n)) to A023758. 1
0, 1, 1, 3, 3, 3, 12, 7, 7, 12, 15, 15, 15, 28, 15, 72, 31, 31, 60, 31, 72, 91, 63, 63, 124, 63, 168, 91, 312, 127, 127, 252, 127, 360, 195, 312, 255, 255, 255, 508, 255, 744, 403, 728, 255, 1240, 511, 511, 1020, 511, 1512, 819, 1560, 511, 1240, 1860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Sequence in context: A233202 A101480 A156715 * A225073 A152575 A170851

Adjacent sequences:  A133794 A133795 A133796 * A133798 A133799 A133800

KEYWORD

nonn

AUTHOR

J. H. Conway, Jan 05 2008

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 June 22 06:28 EDT 2021. Contains 345373 sequences. (Running on oeis4.)