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A106748
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Define the morphism f: 1->113, 2->13, 3->2 and let a(0) = 1; then a(n+1) = f(a(n)).
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6
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OFFSET
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0,2
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REFERENCES
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E. Bombieri and J. Taylor, Which distribution of matter diffracts? An initial investigation, in International Workshop on Aperiodic Crystals (Les Houches, 1986), J. de Physique, Colloq. C3, 47 (1986), C3-19 to C3-28.
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LINKS
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MATHEMATICA
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FromDigits /@ NestList[ Flatten[ # /. {1 -> {1, 1, 3}, 2 -> {1, 3}, 3 -> 2}] &, {1}, 5] (* Robert G. Wilson v, May 17 2005 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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