1,5

Table of n, a(n) for n=1..78.

a(n) = A110591(A000045(n)). - R. J. Mathar, Feb 18 2008

A020912 := proc(n) nops(convert(combinat[fibonacci](n), base, 4)) ; end: seq(A020912(n), n=1..120) ; # R. J. Mathar, Feb 18 2008

Length/@IntegerDigits[Fibonacci[Range[80]], 4] (* Harvey P. Dale, Jul 27 2011 *)

Sequence in context: A104581 A261916 A113675 * A194990 A231153 A330557

Adjacent sequences: A020909 A020910 A020911 * A020913 A020914 A020915

nonn,base,easy

Clark Kimberling

More terms from R. J. Mathar, Feb 18 2008

approved