A078569 Numbers k such that A078568(k) is prime.

1, 5, 25, 53, 370, 14308

Offset

1,2

Comments

Some of the larger entries may only correspond to probable primes.

Links

Table of n, a(n) for n=1..6.

Crossrefs

Cf. A002275, A000422, A078568.

Sequence in context: A062671 A225494 A139479 * A391345 A044082 A161143

Adjacent sequences: A078566 A078567 A078568 * A078570 A078571 A078572

Keyword

nonn,base,hard,more

Author

Jason Earls, Nov 29 2002

Extensions

a(6) from Michael S. Branicky, Feb 08 2026

Status

approved