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!)
 A145275 a(n)=A145232(n+1)/A145232(n) 6
 15005, 792070839820228500005, 311759807762174781605301007201736860141952393239819056256447450170889021063181630442743411596527196875005 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A member of the family of sequences of type: (G^(k^(n + 1)) - (1 - G)^(k^(n + 1)))/(G^(k^n) - (1 - G)^(k^n)) where G = (1 + Sqrt[5])/2 k=2 see A001566 k=3 see A002814(n+2) k=4 see A145274 k=5 see A145275 k=6 see A145276 k=7 see A145277 LINKS FORMULA a(n)=(G^(5^(n + 1)) - (1 - G)^(5^(n + 1)))/(G^(5^n) - (1 - G)^(5^n)) where G = (1 + Sqrt[5])/2 MATHEMATICA G = (1 + Sqrt[5])/2; Table[Expand[(G^(5^(n + 1)) - (1 - G)^(5^(n + 1)))/Sqrt[5]]/Expand[(G^(5^n) - (1 - G)^(5^n))/Sqrt[5]], {n, 1, 5}] (*Artur Jasinski*) CROSSREFS Sequence in context: A236352 A064968 A178929 * A234654 A064730 A081635 Adjacent sequences:  A145272 A145273 A145274 * A145276 A145277 A145278 KEYWORD nonn,bref AUTHOR Artur Jasinski, Oct 06 2008 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 September 23 19:34 EDT 2021. Contains 347617 sequences. (Running on oeis4.)