OFFSET
1,2
COMMENTS
Also numbers n such that (64*10^n+71)/9 is prime.
a(13) > 10^5. - Robert Price, Sep 21 2015
LINKS
FORMULA
a(n) = A101132(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(64*10^n + 71)/9], Print[n]], {n, 0, 10000}]
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 19 2005
EXTENSIONS
a(12) from Kamada data by Robert Price, Dec 14 2010
STATUS
approved