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A058765
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Primes of the form 3^n - 2^n.
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8
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5, 19, 211, 129009091, 68629840493971, 617671248800299, 19383245658672820642055731, 14130386091162273752461387579, 1546132562196033990574082188840405015112916155251
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 1..12
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FORMULA
| a(n) = A001047(A057468(n))
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MATHEMATICA
| Select[Table[3^n-2^n, {n, 0, 2200}], PrimeQ] (* Vincenzo Librandi, Dec 08 2011 *)
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PROG
| (MAGMA) [a: n in [0..300] | IsPrime(a) where a is 3^n - 2^n]; // Vincenzo Librandi, Dec 08 2011
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CROSSREFS
| Cf. A001047 (3^n-2^n) and A057468 (n such that 3^n-2^n is prime).
Sequence in context: A102262 A123281 A135171 * A067967 A092751 A122150
Adjacent sequences: A058762 A058763 A058764 * A058766 A058767 A058768
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 02 2001
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