This site is supported by donations to The OEIS Foundation.

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A075737 Prime Fibonacci numbers with prime indices. 21
 2, 5, 13, 89, 233, 1597, 28657, 514229, 433494437, 2971215073, 99194853094755497, 1066340417491710595814572169, 19134702400093278081449423917, 475420437734698220747368027166749382927701417016557193662268716376935476241 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Same as A005478 except that F(4) = 3 has been omitted. Sequence of primes in A001519. [James R. Buddenhagen, May 20 2010] LINKS T. D. Noe, Table of n, a(n) for n = 1..20 EXAMPLE 5 is a prime and fibonacci(5)=5 is also a prime, 7 is a prime and fibonacci(7)=13 is also a prime, but 2 is a prime and fibonacci(2)=1 is not a prime. MAPLE with(combinat, fibonacci): fib_supM_pra := proc(n); if (isprime(n)='true') then if (isprime(fibonacci(n))='true') then RETURN(fibonacci(n)); fi; fi; end: seq(fib_supM_pra(i), i=1..500); MATHEMATICA Fibonacci[ Prime[ Select[ Range[50], PrimeQ[ Fibonacci[ Prime[ # ]]] & ]]] PROG (PARI) forprime(p=2, 1e3, if(isprime(t=fibonacci(p)), print1(t", "))) \\ Charles R Greathouse IV, Feb 03 2014 CROSSREFS Subsequence of A030426. Cf. A000045, A005478, A083668, A001519. Sequence in context: A075736 A030426 A075742 * A100843 A082101 A158712 Adjacent sequences:  A075734 A075735 A075736 * A075738 A075739 A075740 KEYWORD easy,nonn AUTHOR Jani Melik, Oct 07 2002 STATUS approved

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

Content is available under The OEIS End-User License Agreement .