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!)
A086655 (C(2p,p)-2)/(2p) where p runs through the primes. 1
1, 3, 25, 245, 32065, 400023, 68635477, 930138521, 178987624513, 518401146543811, 7506908923471953, 23596358977508462295, 5180299766448679532059, 77180849825857621779893 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = A022553(prime(n)).
CROSSREFS
Sequence in context: A099913 A245925 A260209 * A064326 A006091 A357232
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Sep 11 2003
EXTENSIONS
Typo in definition corrected by Vladimir Shevelev, Sep 05 2010
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 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)