OFFSET
1,2
COMMENTS
Also numbers n such that (74*10^n+43)/9 is prime.
a(16) > 10^5. - Robert Price, Oct 19 2015
LINKS
FORMULA
a(n) = A101063(n-1) + 1, for n>1.
MATHEMATICA
Do[ If[ PrimeQ[(74*10^n + 43)/9], Print[n]], {n, 0, 10000}]
PROG
(PARI) for(n=0, 1e3, if(isprime((74*10^n+43)/9), print1(n", "))) \\ Altug Alkan, Oct 19 2015
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 19 2005
EXTENSIONS
Inserted a(1)=0 and added a(14)-a(15) by Robert Price, Oct 19 2015
STATUS
approved