A088731 Numbers of the form p^p - 3 where p is prime.

1, 24, 3122, 823540, 285311670608, 302875106592250, 827240261886336764174, 1978419655660313589123976, 20880467999847912034355032910564, 2567686153161211134561828214731016126483466

Offset

1,2

Comments

Sum of reciprocals = 1.041988188435472536468359944..

Links

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

Mathematica

#^#-3&/@Prime[Range[20]] (* Harvey P. Dale, Jun 09 2019 *)

Prog

(PARI) ptop(n, m) = { sr=0; forprime(x=2, n, y=x^x-m; print1(y", "); sr += 1.0/y; ); print(); print(sr) }

Crossrefs

Sequence in context: A001512 A217574 A272179 * A299697 A072529 A349115

Adjacent sequences: A088728 A088729 A088730 * A088732 A088733 A088734

Keyword

nonn

Author

Cino Hilliard, Nov 23 2003

Status

approved