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Search: id:A106638
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| A106638 |
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3-symbol substitution that gives a dragon fractal. |
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+0
1
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| 1, 2, 2, 1, 2, 3, 3, 2, 2, 3, 3, 2, 1, 2, 2, 1, 2, 3, 3, 2, 3, 1, 1, 3, 3, 1, 1, 3, 2, 3, 3, 2, 2, 3, 3, 2, 3, 1, 1, 3, 3, 1, 1, 3, 2, 3, 3, 2, 1, 2, 2, 1, 2, 3, 3, 2, 2, 3, 3, 2, 1, 2, 2, 1, 2, 3, 3, 2, 3, 1, 1, 3, 3, 1, 1, 3, 2, 3, 3, 2, 3, 1, 1, 3, 1, 2, 2, 1, 1, 2, 2, 1, 3, 1, 1, 3, 3, 1, 1, 3, 1, 2, 2, 1, 1
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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1->{2, 1, 1, 2}, 2->{2, 3, 3, 2}, 3->{3, 1, 1, 3}
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MATHEMATICA
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s[1] = {1, 2, 2, 1}; s[2] = {2, 3, 3, 2}; s[3] = {3, 1, 1, 3}; t[a_] := Flatten[s /@ a] p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[4]
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CROSSREFS
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Sequence in context: A106580 A043276 A064742 this_sequence A131909 A131730 A029335
Adjacent sequences: A106635 A106636 A106637 this_sequence A106639 A106640 A106641
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KEYWORD
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nonn,uned
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 11 2005
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