OFFSET
1,1
COMMENTS
The 6th term (if it exists) is larger than 1019.
No additional primes for n < 14000. - T. D. Noe, Jul 07 2005
LINKS
Tom Mueller, Prime and Composite Terms in Sloane's Sequence A056542, Journal of Integer Sequences, Vol. 8 (2005), Article 05.3.3.
CROSSREFS
KEYWORD
hard,nonn
AUTHOR
Tom Mueller (muel4503(AT)uni-trier.de), May 07 2002
EXTENSIONS
a(5) from Tom Mueller (muel4503(AT)uni-trier.de), Oct 30 2004
Name clarified by Sean A. Irvine, Jun 02 2024
STATUS
approved