OFFSET
1,1
COMMENTS
a(17) > 25000. - Robert Price, Dec 20 2016
MATHEMATICA
a = {}; Do[If[PrimeQ[(n! + 8)/8], AppendTo[a, n]], {n, 1, 500}]; a
PROG
(PARI) is(n)=n>6 && isprime((8+n!)/8) \\ Charles R Greathouse IV, Apr 29 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 07 2008; definition corrected Feb 24 2010.
EXTENSIONS
More terms from Serge Batalov, Feb 18 2015
a(15)-a(16) from Robert Price, Dec 20 2016
STATUS
approved