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!)
A046417 Repunit of length a(n) has exactly 6 prime factors (counted with multiplicity). 2
15, 16, 26, 33, 34, 39, 46, 57, 69, 76, 79, 93, 94, 106, 118, 121, 133, 169, 181, 278, 281, 293 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Repunit
CROSSREFS
Sequence in context: A063530 A160661 A342941 * A193566 A079832 A037971
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Jul 15 1998
EXTENSIONS
More terms from Robert Gerbicz, Nov 22 2010
a(20) from Bo Gyu Jeong, Jun 30 2012
a(21)-a(22) from Ray Chandler, Apr 23 2017
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 March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)