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A088816
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Numbers of the form p^p - 2 where p is prime.
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0
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2, 25, 3123, 823541, 285311670609, 302875106592251, 827240261886336764175, 1978419655660313589123977, 20880467999847912034355032910565, 2567686153161211134561828214731016126483467
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Sum of reciprocals = 0.5403214192032919719402677251
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FORMULA
| a(n) = A088730(n)-1=A088731(n)+1. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 26 2007
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PROG
| (PARI) ptop(n, m) = { sr=0; forprime(x=2, n, y=x^x-m; print1(y", "); sr += 1.0/y; ); print(); print(sr) }
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CROSSREFS
| Sequence in context: A015214 A204234 A203747 * A141415 A056948 A035420
Adjacent sequences: A088813 A088814 A088815 * A088817 A088818 A088819
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KEYWORD
| nonn
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AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Nov 23 2003
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