OFFSET
1,2
COMMENTS
Also numbers n such that (29*10^n+43)/9 is prime.
a(4) > 10^5. - Robert Price, Mar 12 2015
LINKS
FORMULA
a(n) = A101830(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(29*10^n+43)/9], Print[n]], {n, 0, 10000}]
Select[Range[5100], PrimeQ[(29 10^# + 43) / 9] &] (* Vincenzo Librandi, Mar 12 2015 *)
PROG
(Magma) [n: n in [0..1000] | IsPrime((29*10^n+43) div 9 )]; // Vincenzo Librandi, Mar 12 2015
CROSSREFS
KEYWORD
bref,more,nonn
AUTHOR
Robert G. Wilson v, Dec 17 2004
STATUS
approved