OFFSET
1,1
COMMENTS
Also numbers n such that (62*10^n+1)/9 is prime.
LINKS
FORMULA
a(n) = A101540(n) + 1.
MATHEMATICA
Do[ If[ PrimeQ[(62*10^n + 1)/9], Print[n]], {n, 0, 10000}]
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Robert G. Wilson v, Jan 18 2005
EXTENSIONS
a(8)-a(10) from Kamada data by Robert Price, Dec 14 2010
STATUS
approved