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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112954 Number of numbers m such that phi(m) = n*tau(m), with phi=A000010 and tau=A000005. 12
7, 9, 10, 9, 7, 17, 4, 17, 14, 15, 7, 19, 2, 16, 20, 21, 0, 29, 0, 29, 9, 13, 7, 32, 7, 11, 23, 21, 7, 39, 0, 19, 17, 4, 11, 44, 2, 0, 11, 41, 7, 24, 2, 19, 30, 11, 0, 55, 4, 23, 7, 21, 7, 46, 9, 27, 4, 11, 0, 61, 0, 0, 27, 29, 9, 30, 2, 10, 19, 31, 0, 57, 2, 9, 27, 4, 4, 30, 2, 50, 29, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Enrique PĂ©rez Herrero, Table of n, a(n) for n = 1..5000

CROSSREFS

Cf. A020491, A020488, A062516, A063469, A063470, A112955, A175667.

Sequence in context: A000510 A262310 A167628 * A031952 A043617 A043696

Adjacent sequences:  A112951 A112952 A112953 * A112955 A112956 A112957

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 07 2005

EXTENSIONS

More terms from Max Alekseyev, Mar 01 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 24 22:49 EDT 2019. Contains 326314 sequences. (Running on oeis4.)