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Search: id:A130063
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| A130063 |
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Primes p such that p divides 3^((p+1)/2) - 2^((p+1)/2) - 1. |
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+0
4
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| 23, 47, 71, 73, 97, 167, 191, 193, 239, 241, 263, 311, 313, 337, 359, 383, 409, 431, 433, 457, 479, 503, 577, 599, 601, 647, 673, 719, 743, 769, 839, 863, 887, 911, 937, 983, 1009, 1031, 1033, 1103, 1129, 1151, 1153, 1201, 1223, 1249, 1297, 1319, 1321, 1367
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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Select[ Range[2000], PrimeQ[ # ]&&Mod[ PowerMod[3, (#+1)/2, # ] - PowerMod[2, (#+1)/2, # ] - 1, # ]==0&]
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CROSSREFS
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Cf. A097934 = Primes p such that p divides 3^((p-1)/2) - 2^((p-1)/2). Cf. A038876(n) = Primes p such that 6 is a square mod p. Cf. A127071, A127072, A127073, A127074. Cf. A130058, A130059, A130060, A130061, A130062.
Sequence in context: A042046 A042044 A042042 this_sequence A141376 A134517 A140614
Adjacent sequences: A130060 A130061 A130062 this_sequence A130064 A130065 A130066
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KEYWORD
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nonn
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AUTHOR
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Alexander Adamchuk (alex(AT)kolmogorov.com), May 05 2007
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