Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A117696
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A117696 Primes in sequence a(1)=2, a(n+1)=2^a(n)-3^(n-1). +0
1
2, 3, 5, 23, 8388581 (list; graph; listen)
OFFSET

1,1

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 this_sequence A024774 A068543 A064026

Adjacent sequences: A117693 A117694 A117695 this_sequence A117697 A117698 A117699

KEYWORD

hard,nonn

AUTHOR

Parviz Afereidoon (afereidoon(AT)gmail.com), Apr 13 2006

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research