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!)
A121409 Prime numbers p such that p and prime(p) have no common decimal digit and prime(p) and prime(prime(p)) have no common decimal digit. 1
2, 3, 17, 19, 89, 317, 563, 1091, 2099, 3181, 5023, 44221, 53899, 410747, 410801, 448373, 451181, 481133, 519151, 617657, 738523, 882979, 992087, 1611433, 2167421, 2688299, 2723627, 2811089, 3331033, 3411043, 3499411, 3983911, 3988889, 6233933 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Subsequence of A119405. Positions of a(n) in A119405: A121410.
LINKS
EXAMPLE
992087 is a term because p(992087)=15353531, p(15353531)=282479297, and 992087 and 15353531 have no common decimal digit, nor do 15353531 and 282479297.
CROSSREFS
Sequence in context: A154274 A235628 A140834 * A041295 A128845 A128851
KEYWORD
base,nonn,less
AUTHOR
Zak Seidov, Jul 28 2006
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 28 15:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)