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A173137
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n-th nonnegative noncomposite number plus n.
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0
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1, 3, 5, 7, 10, 13, 18, 21, 26, 29, 34, 41, 44, 51, 56, 59, 64, 71, 78, 81, 88, 93, 96, 103, 108, 115, 124, 129, 132, 137, 140, 145, 160, 165, 172, 175, 186, 189, 196, 203, 208, 215, 222, 225, 236, 239, 244, 247, 260, 273, 278, 281, 286, 293, 296, 307, 314, 321
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listen;
history;
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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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EXAMPLE
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a(1) = 0 + 1 = 1, a(2) = 1 + 2 = 3, a(3) = 2 + 3 = 5,
a(4) = 3 + 4 = 7, a(5) = 5 + 5 = 10.
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MATHEMATICA
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Join[{1}, Table[Prime[n - 1] + n + 1, {n, 2, 60}]] (* Vincenzo Librandi, Dec 08 2015 *)
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PROG
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(Magma) [1] cat [NthPrime(n-1)+n+1: n in [1..58] ]; // Vincenzo Librandi, Dec 08 2015
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CROSSREFS
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KEYWORD
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nonn,easy,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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