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A171668 Fibonacci numbers sandwiched between two numbers having same number of divisors. 1
34, 55, 144, 10946, 46368, 196418, 9227465, 1134903170, 4052739537881, 117669030460994, 420196140727489673, 12200160415121876738, 3928413764606871165730, 22698374052006863956975682 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
f[n_]:=Length[Divisors[n]]; lst={}; Do[fi=Fibonacci[n]; If[f[fi-1]==f[fi+1], AppendTo[lst, fi]], {n, 170}]; lst
CROSSREFS
Sequence in context: A051969 A241520 A067243 * A259676 A227304 A055574
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified February 21 06:16 EST 2024. Contains 370219 sequences. (Running on oeis4.)