The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A107335 Count down Pisot cubic substitution with characteristic polynomial:x^3-3*x^2-2*x-1. 0
 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1, 3, 2, 3, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS x^3-D[x^3+x^2+x+1,x]=:x^3-3*x^2-1*x-1 (x-1)*(x^3+x^2+x+1)=x^4-1 LINKS FORMULA 1->{1, 3, 2, 3, 1}, 2->{3}, 3->{1} MATHEMATICA s[1] = {1, 1, 3, 2, 3, 1}; s[2] = {3}; s[3] = {1}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[4] CROSSREFS Sequence in context: A309698 A085747 A106693 * A200223 A236228 A082391 Adjacent sequences:  A107332 A107333 A107334 * A107336 A107337 A107338 KEYWORD nonn,uned AUTHOR Roger L. Bagula, May 22 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 February 26 00:08 EST 2020. Contains 332270 sequences. (Running on oeis4.)