login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A099000 Indices n such that the n-th prime is a Fibonacci number. 1
1, 2, 3, 6, 24, 51, 251, 3121, 42613, 23023556, 143130479, 2602986161967491 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..12.

FORMULA

a(n) = A000720(A005478(n)). - M. F. Hasler, Aug 21 2011

MATHEMATICA

PrimePi[Select[Fibonacci[Range[80]], PrimeQ]]

PROG

(PARI) print1("1, 2"); forprime(p=5, 47, if(isprime(fibonacci(p)), print1(", "primepi(fibonacci(p))))) \\ Charles R Greathouse IV, Aug 21 2011

CROSSREFS

Cf. A001605 (n-th Fibonacci number is prime), A005478 (Prime Fibonacci numbers).

Sequence in context: A295967 A027163 A160683 * A032540 A063728 A296259

Adjacent sequences:  A098997 A098998 A098999 * A099001 A099002 A099003

KEYWORD

hard,nonn

AUTHOR

Rick L. Shepherd, Nov 06 2004

EXTENSIONS

a(11) from Ryan Propper, Oct 16 2005

a(12) from Charles R Greathouse IV, Aug 21 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 25 17:47 EDT 2019. Contains 324353 sequences. (Running on oeis4.)