A124128 Numbers k such that A001372(k) is prime.

2, 3, 4, 5, 34, 51, 192, 206, 293, 1983

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Example

2 is a term because A001372(2) = 3 is prime.

Crossrefs

Cf. A001372 (number of endofunctions on n points).

Sequence in context: A086130 A024636 A004845 * A286902 A037401 A062509

Adjacent sequences: A124125 A124126 A124127 * A124129 A124130 A124131

Keyword

nonn,less,hard,more

Author

Jonathan Vos Post, Nov 29 2006

Extensions

a(7) corrected and a(9) from Sean A. Irvine, Jan 16 2021

a(10) from Daniel Suteu, Jan 16 2021

Status

approved