OFFSET
1,1
COMMENTS
The next term, if one exists, is > 100000. - Robert Price, Apr 25 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "99961".
LINKS
EXAMPLE
k=2 is a term because 10^2 - 39 = 61 (prime).
k=61 is a term because 10^61 - 39 = 9999999999999999999999999999999999999999999999999999999999961 (prime).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Parthasarathy Nambi, Jul 01 2005
EXTENSIONS
a(8)-a(12) from Stefan Steinerberger, Nov 05 2005
a(13)-a(19) from Robert Price, Dec 12 2010
Edited by Ray Chandler, Dec 23 2010
a(20)-a(21) from Robert Price, Apr 25 2011
STATUS
approved