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!)
A117696 Primes in sequence a(1)=2, a(n+1)=2^a(n)-3^(n-1). 0
2, 3, 5, 23, 8388581 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(1)=2, a(n+1)=2^a(n)-3^(n-1)
EXAMPLE
a(1)=2, a(2)=2^a(1)-3^0=2^2-3^0=3
CROSSREFS
Cf. A075883.
Sequence in context: A053708 A137070 A084730 * A256463 A279864 A324289
KEYWORD
hard,nonn
AUTHOR
Parviz Afereidoon (afereidoon(AT)gmail.com), Apr 13 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 April 22 05:00 EDT 2024. Contains 371887 sequences. (Running on oeis4.)