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A168152
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a(n) = prime(prime(n)) - prime(n).
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3
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1, 2, 6, 10, 20, 28, 42, 48, 60, 80, 96, 120, 138, 148, 164, 188, 218, 222, 264, 282, 294, 322, 348, 372, 412, 446, 460, 480, 490, 504, 582, 608, 636, 658, 710, 726, 762, 804, 824, 858, 884, 906, 962, 978, 1004, 1018, 1086, 1186, 1206, 1218, 1238, 1260, 1282
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OFFSET
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1,2
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LINKS
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FORMULA
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MAPLE
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MATHEMATICA
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Table[Prime[Prime[n]] - Prime[n], {n, 1, 100}] (* G. C. Greubel, Jul 14 2016 *)
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PROG
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(Magma) [NthPrime(NthPrime(n))-NthPrime(n): n in [1..60]]; // Vincenzo Librandi, Jul 15 2016
(PARI) a(n) = my(p=prime(n)); prime(p) - p; \\ Michel Marcus, Mar 08 2022
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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