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A105698
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Fixed point of morphism 1->{1, 4, 2, 1}, 2->{2, 1, 3, 2}, 3->{3, 2, 4, 3}, 4->{4, 1, 3, 4}.
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0
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1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 1, 4, 2, 1, 3, 2, 4, 3, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 3, 2, 4, 3, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 1, 4, 2, 1, 3, 2, 4, 3, 4, 1, 3, 4, 1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 3, 2, 4, 3, 2, 1, 3, 2, 4
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| F. M. Dekking, "Recurrent Sets", Advances in Mathematics, vol. 44, no.1, April 1982, page 85, section 4.1
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FORMULA
| a(4n-3) = a(4n) = a(n).
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MATHEMATICA
| s[1] = {1, 4, 2, 1}; s[2] = {2, 1, 3, 2}; s[3] = {3, 2, 4, 3}; s[4] = {4, 1, 3, 4}; 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
| Sequence in context: A071406 A010311 A023528 * A105699 A023526 A082901
Adjacent sequences: A105695 A105696 A105697 * A105699 A105700 A105701
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KEYWORD
| nonn
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 04 2005
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