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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A054782 Number of primes <= n-th Fibonacci number. 2
0, 0, 0, 1, 2, 3, 4, 6, 8, 11, 16, 24, 34, 51, 74, 111, 166, 251, 376, 574, 871, 1329, 2033, 3121, 4794, 7396, 11425, 17688, 27426, 42613, 66317, 103298, 161207, 251757, 393790, 616645, 966507, 1516410, 2381429, 3743010, 5888201, 9269519, 14604028 (list; graph; refs; listen; history; internal format)
OFFSET

0,5

LINKS

H. J. Smith, Table of n, a(n) for n = 0..70

MAPLE

with(combinat): with(numtheory): seq(pi(fibonacci(n)), n = 0 .. 42); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jun 24 2009]

PROG

(Other) sage: [prime_pi(fibonacci(n)) for n in xrange(0, 43)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 06 2009]

CROSSREFS

Sequence in context: A066806 A057048 A017911 * A173542 A085113 A129121

Adjacent sequences:  A054779 A054780 A054781 * A054783 A054784 A054785

KEYWORD

nonn

AUTHOR

Jeff Burch (gburch(AT)erols.com), May 22 2000

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), May 23 2000; and N. J. A. Sloane (njas(AT)research.att.com), Nov 07 2000.

Four more terms from Rick L. Shepherd (rshepherd2(AT)hotmail.com), Dec 06 2004

Three more terms a(40), a(41), a(42) from Harry J. Smith (hjsmithh(AT)sbcglobal.net), Dec 16 2008

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

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

Last modified February 13 09:48 EST 2012. Contains 205451 sequences.