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Search: id:A114511
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| A114511 |
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a(0) = 0. s(0) = {0}. s(n+1) = s(n) U s(a(n)) U {n}, where U represents a concatenation of finite sequences. The sequence {a(n)} is the limit of s(m) as m -> infinity. |
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3
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| 0, 0, 0, 0, 1, 0, 2, 0, 3, 0, 0, 0, 4, 0, 5, 0, 0, 0, 0, 1, 6, 0, 7, 0, 0, 0, 0, 1, 0, 2, 8, 0, 9, 0, 10, 0, 11, 0, 0, 0, 0, 1, 0, 2, 0, 3, 12, 0, 13, 0, 0, 0, 0, 1, 0, 2, 0, 3, 0, 0, 0, 4, 14, 0, 15, 0, 16, 0, 17, 0, 18, 0, 0, 0, 19, 0, 0, 0, 0, 1, 0, 2, 0, 3, 0, 0, 0, 4, 0, 5, 20, 0, 21, 0, 0, 0, 0, 1
(list; graph; listen)
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OFFSET
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0,7
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COMMENT
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Number of terms in s(n) is A114513(n).
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EXAMPLE
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s(1) = {0,0,0}, s(4) = {0,0,0,0,1,0,2,0,3}. s(5) = s(4) U s(a(4)) U {4} =
{0,0,0,0,1,0,2,0,3} U {0,0,0} U {4} = {0,0,0,0,1,0,2,0,3,0,0,0,4}, which are the first 13 terms of {a(n)}.
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MATHEMATICA
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s[0] = {0}; s[n_] := s[n] = Flatten[{s[n - 1], s[s[n - 1][[n]]], {n - 1}}]; s[23] (*Chandler*)
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CROSSREFS
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Cf. A114510, A114513.
Sequence in context: A079302 A138806 A104117 this_sequence A085199 A085200 A080024
Adjacent sequences: A114508 A114509 A114510 this_sequence A114512 A114513 A114514
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), Dec 03 2005
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 05 2005
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