OFFSET
1,1
COMMENTS
The primality of a(4)! was established by Andrey V. Kulsha and Peter Liaskovsky (ALTAIR(AT)tut.by).
a(7) > 30000. [From Donovan Johnson, Mar 29 2010]
CROSSREFS
KEYWORD
base,hard,nonn
AUTHOR
G. L. Honaker, Jr., Mar 29 2001
EXTENSIONS
a(5)-a(6) from Donovan Johnson, Mar 29 2010
STATUS
approved