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Search: id:A086214
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| A086214 |
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Primes of the form 3^p-2 where p is prime. |
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+0
2
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OFFSET
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1,1
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COMMENT
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Sum of reciprocals = 0.1470065204505038552417181957...
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PROGRAM
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(PARI) xtopm1(n, k, r) = { sr=0; forprime(p=2, n, y=k^p-r; if(isprime(y), print1(y", "); sr+=1./y; ); ); print(); print(sr) }
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CROSSREFS
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Cf. A086218.
Sequence in context: A081618 A120661 A139057 this_sequence A133589 A119942 A130741
Adjacent sequences: A086211 A086212 A086213 this_sequence A086215 A086216 A086217
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Aug 28 2003
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EXTENSIONS
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The next two terms, 3^317-2 and 3^541-2, are too large to include. - Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Apr 05 2004
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