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A088731
Numbers of the form p^p - 3 where p is prime.
1
1, 24, 3122, 823540, 285311670608, 302875106592250, 827240261886336764174, 1978419655660313589123976, 20880467999847912034355032910564, 2567686153161211134561828214731016126483466
OFFSET
1,2
COMMENTS
Sum of reciprocals = 1.041988188435472536468359944..
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
KEYWORD
nonn
AUTHOR
Cino Hilliard, Nov 23 2003
STATUS
approved