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Search: id:A128021
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| 1, 1, 2, 3, 5, 8, 14, 25, 44, 79, 144, 264, 487, 905, 1689, 3167, 5962, 11261, 21337, 40540, 77219, 147418, 282017, 540533, 1037823, 1995814, 3843790, 7413023, 14314803, 27675286, 53565070, 103782323, 201274808, 390709922, 759093562
(list; graph; listen)
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OFFSET
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1,3
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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FORMULA
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a(n) = 1 + floor(sum{k=1 to n-1} A128020(k) /n).
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MATHEMATICA
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f[l_List] := Block[{n = Length[l] + 1}, Append[l, (1 + Floor[Sum[k*l[[k]], {k, n - 1}]/n])]]; Nest[f, {}, 37] (*Chandler*)
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CROSSREFS
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Cf. A128020.
Sequence in context: A104882 A091956 A107480 this_sequence A036241 A125028 A119262
Adjacent sequences: A128018 A128019 A128020 this_sequence A128022 A128023 A128024
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet Feb 11 2007
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 12 2007
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