OFFSET
1,2
COMMENTS
Also numbers k such that (82*10^k + 53)/9 is a prime.
Some of the larger entries may only correspond to probable primes.
a(14) > 10^5. - Robert Price, Oct 25 2015
LINKS
FORMULA
a(n) = A100999(n) + 1.
EXAMPLE
n = 1, 17, so that 97 and 911111111111111117 are primes.
MATHEMATICA
Do[ If[ PrimeQ[(82*10^n + 53)/9], Print[n]], {n, 0, 10000}] (* Robert G. Wilson v, Jan 19 2005 *)
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Julien Peter Benney (jpbenney(AT)ftml.net), Nov 21 2004
EXTENSIONS
a(8)-a(12) from Robert G. Wilson v, Jan 12 2005
a(13) from Robert G. Wilson v, Jan 12 2005
STATUS
approved