OFFSET
1,1
COMMENTS
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..30
MATHEMATICA
Prepend[Select[2^Range[2, 200]-3, PrimeQ], 3]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Feb 22 2002
EXTENSIONS
Edited and extended by Robert G. Wilson v, Feb 27 2002 and by Dean Hickerson, Mar 21 2002
STATUS
approved