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A104104
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a(1) = 1, if A(k) = sequence of first 2^(k-1) terms and if B(k) is A(k) with 0's and 1's exchanged, then A(k+1) = A(k)A(k) if a(k) = 0, A(k+1) = A(k)B(k) if a(k) = 1.
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5
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1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MATHEMATICA
| f[l_]:=Join[l, If[l[[Log[2, Length[l]]+1]]==0, l, 1-l]]; Nest[f, {1}, 7] (*Chandler*)
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CROSSREFS
| Cf. A104105, A104106, A104107, A104108.
Sequence in context: A129569 A030658 A112539 * A078588 A039983 A152490
Adjacent sequences: A104101 A104102 A104103 * A104105 A104106 A104107
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KEYWORD
| easy,nonn
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AUTHOR
| Leroy Quet, Mar 04 2005
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EXTENSIONS
| Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 05 2009
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