|
|
A070213
|
|
Numbers n such that a(n)=n*a(n-1)+1 with a(1)=0 is prime.
|
|
1
|
|
|
|
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
|
|
|
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
|
|
STATUS
|
approved
|
|
|
|