A378815 Numbers k such that 5^k + 64 is prime.

2, 58, 170, 1402, 1774, 10802, 86342

Offset: 1

Author

Robert Price, Dec 08 2024

Keywords

• nonn
• more

Examples

			2 is a term because 5^2 + 64 = 89 is prime.
		

Crossrefs

Cf. A089142, A124621, A217133.

Programs

Magma

[k: k in [0..1000] |IsPrime (5^k+64)];

Mathematica

Select[Range[0,5000],PrimeQ[5^#+64]&]

Extensions

a(6) from Michael S. Branicky, Dec 17 2024

a(7) from Michael S. Branicky, Dec 23 2024