OFFSET
1,1
MATHEMATICA
Select[Table[8^n + 5, {n, 4000}], PrimeQ]
PROG
(Magma) [a: n in [1..300] | IsPrime(a) where a is 8^n+5];
CROSSREFS
Cf. A217355 (associated n).
Cf. Primes of the form k^n + h: A092506 (k=2, h=1), A057733 (k=2, h=3), A123250 (k=2, h=5), A104066 (k=2, h=7), A104070 (k=2, h=9), A057735 (k=3, h=2), A102903 (k=3, h=4), A102870 (k=3, h=8), A102907 (k=3, h=10), A290200 (k=4, h=1), A182330 (k=5, h=2), A102910 (k=5, h=8), A182331 (k=6, h=1), A104118 (k=6, h=5), A104115 (k=6, h=7), A104065 (k=7, h=4), this sequence (k=8, h=5), A144360 (k=8, h=7), A145440 (k=8, h=9), A228034 (k=9, h=2), A159352 (k=10, h=3), A159031 (k=10, h=7).
KEYWORD
nonn,hard,bref
AUTHOR
Vincenzo Librandi, Aug 11 2013
EXTENSIONS
Corrected cross-references - Robert Price, Aug 01 2017
STATUS
approved