OFFSET
1,1
COMMENTS
For primes of the form (5+n!)/5 see A139059.
a(21) > 25000. - Robert Price, Nov 20 2016
MATHEMATICA
a = {}; Do[If[PrimeQ[(n! + 5)/5], AppendTo[a, n]], {n, 1, 751}]; a
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 07 2008
EXTENSIONS
More terms from Serge Batalov, Feb 18 2015
a(19)-a(20) from Robert Price, Nov 20 2016
STATUS
approved