A228028 Primes of the form 5^n + 4.

5, 29, 15629, 9765629

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..8

Mathematica

Select[Table[5^n + 4, {n, 0, 200}], PrimeQ]

Prog

(Magma) [a: n in [0..200] | IsPrime(a) where a is  5^n+4];

Crossrefs

Cf. A124621 (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), A228027 (k=4, h=9), A182330 (k=5, h=2), this sequence (k=5, h=4), A228029 (k=5, h=6), 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), A228030 (k=7, h=6), A228031 (k=7, h=10), A228032 (k=8, h=3), A228033 (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).

Sequence in context: A371347 A086720 A056869 * A237256 A172041 A187605

Adjacent sequences: A228025 A228026 A228027 * A228029 A228030 A228031

Keyword

nonn

Author

Vincenzo Librandi, Aug 11 2013

Extensions

Corrected cross-references - Robert Price, Aug 01 2017

Status

approved