OFFSET
1,2
COMMENTS
Also numbers n such that (77*10^n-23)/9 is prime.
a(16) > 10^5. - Robert Price, Oct 22 2015
LINKS
FORMULA
a(n) = A101071(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(77*10^n - 23)/9], Print[n]], {n, 0, 10000}]
PROG
(PARI) for(n=0, 1e5, if(isprime((77*10^n-23)/9), print1(n, ", "))) \\ Altug Alkan, Oct 22 2015
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 19 2005
EXTENSIONS
a(14) from Kamada data by Robert Price, Dec 14 2010
a(15) from Robert Price, Oct 22 2015
STATUS
approved