OFFSET
1,2
COMMENTS
Also numbers n such that (43*10^n-61)/9 is prime.
a(9) > 10^5. - Robert Price, Jun 01 2015
LINKS
FORMULA
a(n) = A101732(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(43*10^n - 61)/9], Print[n]], {n, 0, 10000}]
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 17 2005
EXTENSIONS
Two more PRP terms from Serge Batalov, Feb 15 2009
a(7)-a(8) from Robert Price, Jun 01 2015
STATUS
approved