

A054782


Number of primes <= nth Fibonacci number.


6



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
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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); # Emeric Deutsch, Jun 24 2009


PROG

(Sage) [prime_pi(fibonacci(n)) for n in xrange(0, 43)] # Zerinvary Lajos, Jun 06 2009


CROSSREFS

Sequence in context: A017911 A057048 A281094 * A261082 A271487 A211397
Adjacent sequences: A054779 A054780 A054781 * A054783 A054784 A054785


KEYWORD

nonn


AUTHOR

Jeff Burch, May 22 2000


EXTENSIONS

More terms from James A. Sellers, May 23 2000; and N. J. A. Sloane, Nov 07 2000.
Four more terms from Rick L. Shepherd, Dec 06 2004
Three more terms a(40), a(41), a(42) from Harry J. Smith, Dec 16 2008


STATUS

approved



