The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A088844 Multiply perfect numbers k for which the quotient sigma_3(k)/k = A001158(k)/k is nonintegral. 1
28, 2178540, 45532800, 142990848, 14182439040, 43861478400, 518666803200, 704575228896, 13661860101120, 181742883469056, 740344994887680, 20158185857531904, 275502900594021408, 71065075104190073088, 87934476737668055040, 154345556085770649600, 1161492388333469337600 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A047680 A090768 A119180 * A234620 A137942 A099090
KEYWORD
nonn,changed
AUTHOR
Labos Elemer, Nov 05 2003
EXTENSIONS
More terms from Amiram Eldar, May 09 2024
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 16 00:16 EDT 2024. Contains 372549 sequences. (Running on oeis4.)