The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A172150 Smallest Fibonacci number divisible by 2^(2*n). 1

%I #7 Mar 30 2012 18:52:13

%S 8,144,4807526976,5972304273877744135569338397692020533504

%N Smallest Fibonacci number divisible by 2^(2*n).

%C The next term has 161 digits.

%e f(12)=144=2^4*3^2,

%e f(48)=4807526976=2^6*3^2*7*23*47*1103,

%e f(192)=2^8*3^2*7*23*47*769*1087*1103*2207*..,

%e f(768)=2^10*3^2*7*23*47*127*383*..,..

%t lst={8};k=12;Do[AppendTo[lst,Fibonacci[k]];k*=4,{n,5}];lst

%Y Cf. A000045, A172145

%K nonn

%O 1,1

%A _Vladimir Joseph Stephan Orlovsky_, Nov 19 2010

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 27 11:42 EDT 2024. Contains 372858 sequences. (Running on oeis4.)