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A163319
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Primes of the form 3^n-n^3.
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3
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2, 17, 58049, 6461081889226673298791633, 273892744995340833777347939263771534786080723598328513, 141158163862183763292171284564016760661754655311572624335224092241585052457078933432718798844633407313
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OFFSET
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1,1
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COMMENTS
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Generated by the n of A109387. The number of decimal digits in this sequence grows as 1, 2, 5, 25, 54, 102, 166, 194,...
The large terms beyond a(6) are not shown.
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LINKS
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Table of n, a(n) for n=1..6.
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MATHEMATICA
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f[n_]:=3^n-n^3; lst={}; Do[If[PrimeQ[f[n]], AppendTo[lst, f[n]]], {n, 4*5!}]; lst
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CROSSREFS
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Sequence in context: A174305 A003819 A078624 * A269836 A114950 A112969
Adjacent sequences: A163316 A163317 A163318 * A163320 A163321 A163322
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KEYWORD
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nonn
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, Jul 24 2009
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EXTENSIONS
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Edited by R. J. Mathar, Jul 26 2009
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STATUS
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approved
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