A144233 Prime numbers of the form 5^k +- 4 for k >= 1.

29, 3121, 15629, 78121, 9765629, 30517578121, 710542735760100185871124267578121, 413590306276513837435704346034981426782906055450439453121, 197215226305252951352932141320696557418301608777255751192569732666015629

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Mathematica

Select[Flatten[Table[5^n+{-4, 4}, {n, 90}]], PrimeQ] (* Harvey P. Dale, Jan 26 2019 *)

Crossrefs

Cf. A000040, A000668, A144231, A144232.

Sequence in context: A171720 A305138 A091751 * A125074 A033519 A260844

Adjacent sequences: A144230 A144231 A144232 * A144234 A144235 A144236

Keyword

nonn

Author

Reikku Kulon, Sep 15 2008

Extensions

More terms from Alois P. Heinz, Jul 14 2019

Status

approved