OFFSET
1,1
EXAMPLE
a(2) = a(3) = 21 because (21, 34, 55) is a run of three consecutive Fibonacci composites, so 21 is in the sequence (21, 34) of at least 2 and in the sequence (21, 34, 55) of at least 3 consecutive composites in A000045.
MATHEMATICA
Fibonacci[#]&/@(Flatten[Table[SequencePosition[Table[If[CompositeQ[Fibonacci[n]], 1, 0], {n, 100}], PadRight[ {}, k, 1], 1], {k, 100}], 1][[;; , 1]]) (* Harvey P. Dale, Aug 24 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
R. J. Mathar, Nov 22 2010
STATUS
approved