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Search: id:A104108
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| A104108 |
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a(1) = 1, c(1)=1, if A(k) = sequence of first c(k) terms and if B(k) is A(k) with 0's and 1's exchanged, then A(k+1) = A(k)B(k) and c(k+1)= 2*c(k) if a(k) = 1, A(k+1) = A(k),0,B(k) and c(k+1)= 2*c(k)+1 if a(k) = 0. |
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+0
5
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| 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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MATHEMATICA
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f[l_]:=Join[l, If[l[[Floor[Log[2, Length[l]]]+1]]==1, {}, {0}], 1-l]; Nest[f, {1}, 7] (*Chandler*)
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CROSSREFS
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Cf. A104104, A104105, A104106, A104107.
Sequence in context: A014017 A121262 A102243 this_sequence A089024 A068430 A141738
Adjacent sequences: A104105 A104106 A104107 this_sequence A104109 A104110 A104111
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet, Mar 04 2005
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EXTENSIONS
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Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 05 2009
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