OFFSET
2,1
REFERENCES
Marcus du Sautoy, "The Music of the Primes," HarperCollins, NY, 2003, page 6.
EXAMPLE
a(10)=3 because there are 3 primes, 9999999929, 9999999943 and 9999999967, in
the 100 numbers below 10^10.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jason Earls, May 14 2004
STATUS
approved