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Search: id:A098876
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| A098876 |
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Least k such that 3*((6*n)^k) - 1 is prime. |
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+0
2
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| 1, 2, 1, 1, 1, 1, 2523, 2, 2, 1, 1, 2, 1, 1, 1, 2, 3, 6, 63, 1, 50, 38, 2, 1, 1, 1, 79, 1, 1, 3, 1, 4, 1, 2, 2, 1, 6, 1, 1, 1, 5, 3, 1, 18, 1, 1, 11, 1, 1, 26, 3, 10, 1, 1, 4, 2, 2, 4, 1, 6, 1, 4, 54, 1, 10, 1, 3, 1, 2, 1, 1
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(72)>10^4. - Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 13 2004
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MATHEMATICA
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f[n_] := Block[{k = 1}, While[ !PrimeQ[3*((6*n)^k) - 1], k++ ]; k]; Table[ f[n], {n, 71}] (from Robert G. Wilson v Oct 21 2004)
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CROSSREFS
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Cf. A098877.
Adjacent sequences: A098873 A098874 A098875 this_sequence A098877 A098878 A098879
Sequence in context: A124341 A134744 A016541 this_sequence A143277 A056563 A088231
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KEYWORD
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nonn
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), Oct 13 2004
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EXTENSIONS
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Corrected and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 22 2004
a(72)>3830 and the sequence then continues: 6,2,7,1,27,2,3,1,7,2,1,1,4,36,346,1,1,1,1,3,6,2,1,2,444,
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