This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A106750 Define the "Fibonacci" morphism f: 1->12, 2->1 and let a(0) = 2; then a(n+1) = f(a(n)). 5
 2, 1, 12, 121, 12112, 12112121, 1211212112112, 121121211211212112121, 1211212112112121121211211212112112, 1211212112112121121211211212112112121121211211212112121 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS a(n) converges to the Fibonacci word A003842. a(n) has length Fibonacci(n+1) (cf. A000045). REFERENCES Berstel, Jean. "Fibonacci wordsâ€”a survey." In The book of L, pp. 13-27. Springer Berlin Heidelberg, 1986. 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. LINKS N. J. A. Sloane, Table of n, a(n) for n = 0..15 MATHEMATICA FromDigits /@ NestList[ Flatten[ # /. {1 -> {1, 2}, 2 -> 1}] &, {2}, 8] (* Robert G. Wilson v, May 17 2005 *) CROSSREFS Cf. A106748, A106749, A003842, A000045, A213975, A213976. Sequence in context: A181867 A231611 A171510 * A258821 A124916 A007418 Adjacent sequences:  A106747 A106748 A106749 * A106751 A106752 A106753 KEYWORD nonn AUTHOR N. J. A. Sloane, May 16 2005. Initial term 2 added by N. J. A. Sloane, Jul 05 2012 EXTENSIONS More terms from Robert G. Wilson v, May 17 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 17 16:51 EDT 2019. Contains 328120 sequences. (Running on oeis4.)