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A172150 Smallest Fibonacci number divisible by 2^(2*n). 1
8, 144, 4807526976, 5972304273877744135569338397692020533504 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 161 digits.

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

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

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

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

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

MATHEMATICA

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

CROSSREFS

Cf. A000045, A172145

Sequence in context: A111687 A231851 A071305 * A105046 A123812 A064331

Adjacent sequences:  A172147 A172148 A172149 * A172151 A172152 A172153

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Nov 19 2010

STATUS

approved

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Last modified February 20 10:26 EST 2018. Contains 299385 sequences. (Running on oeis4.)