OFFSET
1,2
COMMENTS
Also numbers n such that (14*10^n-17)/3 is prime.
a(20) > 10^5. - Robert Price, May 27 2015
LINKS
FORMULA
a(n) = A101729(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(14*10^n - 17)/3], Print[n]], {n, 0, 10000}]
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 17 2005
EXTENSIONS
Addition of a(18)-a(19) from Kamada data by Robert Price, Dec 10 2010
STATUS
approved