OFFSET
1,1
COMMENTS
Conjecture: every even number is a member.
EXAMPLE
41, 421, 4261 etc. are primes.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 06 2003
EXTENSIONS
Extended by Max Alekseyev, Jul 25 2009
STATUS
approved