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A171668
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Fibonacci numbers sandwiched between two numbers having same number of divisors.
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1
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34, 55, 144, 10946, 46368, 196418, 9227465, 1134903170, 4052739537881, 117669030460994, 420196140727489673, 12200160415121876738, 3928413764606871165730, 22698374052006863956975682
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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f[n_]:=Length[Divisors[n]]; lst={}; Do[fi=Fibonacci[n]; If[f[fi-1]==f[fi+1], AppendTo[lst, fi]], {n, 170}]; lst
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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