OFFSET
1,2
COMMENTS
A080651 is a subsequence. - R. J. Mathar, May 25 2009
LINKS
Robert Israel, Table of n, a(n) for n = 1..1073
FORMULA
MAPLE
MATHEMATICA
okQ[n_] := With[{tau = DivisorSigma[0, #]&},
IntegerQ[tau[Fibonacci[n]]/tau[n]]];
Select[Range[100], okQ] (* Jean-François Alcover, May 17 2023 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Ctibor O. Zizka, May 23 2009
EXTENSIONS
2, 12 removed and sequence extended by R. J. Mathar, May 25 2009
STATUS
approved