OFFSET
1,2
MAPLE
p:=ithprime: seq(p(p(p(p(n)-1)-1)-1)-1, n=1..40); # Emeric Deutsch, Aug 16 2008
MATHEMATICA
Table[Prime[Prime[Prime[Prime[n - 1] - 1] - 1] - 1] - 1, {n, 2, 50}] (* Vincenzo Librandi, Apr 05 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Jul 31 2008
EXTENSIONS
Corrected and extended by Emeric Deutsch, Aug 16 2008
STATUS
approved