OFFSET
1,2
COMMENTS
Also numbers n such that (79*10^n-61)/9 is prime.
a(13) > 10^5. - Robert Price, Oct 25 2015
LINKS
FORMULA
a(n) = A101076(n+1) + 1, for n>1.
MATHEMATICA
Do[ If[ PrimeQ[(79*10^n - 61)/9], Print[n]], {n, 0, 10000}]
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 19 2005
EXTENSIONS
1 more term. Next term exceeds 50000. Sean A. Irvine, Sep 10 2009
Inserted a(1)=0 and added a(11)-a(12) by Robert Price, Oct 25 2015
STATUS
approved