A094400 Odd n dividing Fibonacci(n)-1 but neither Fibonacci(n-1) nor Fibonacci(n+1).

7743, 27071, 54839, 72831, 217257, 388367, 417601, 575599, 670879, 691447, 701569, 809999, 850541, 881011, 1274897, 1365407, 1383249, 1464449, 1504097, 1653751, 1922817, 2106017, 2276351, 2385811, 2474047, 2556553, 2628879, 2697899, 2804543, 3017729, 3352049

Offset

1,1

Links

Giovanni Resta, Table of n, a(n) for n = 1..559 (terms < 4*10^9)

Mathematica

Select[Range[50000], OddQ[ # ] && Mod[Fibonacci[ # ] - 1, # ] == 0 && ! Mod[Fibonacci[ # - 1], # ] == 0 && ! Mod[Fibonacci[ # + 1], # ] == 0 &]

Crossrefs

Cf. A069106, A069107, A094394, A094401, A094402.

Sequence in context: A179574 A229419 A116239 * A116282 A187958 A052050

Adjacent sequences: A094397 A094398 A094399 * A094401 A094402 A094403

Keyword

nonn

Author

Eric Rowland, May 01 2004

Extensions

Offset corrected by and a(15)-a(31) from Giovanni Resta, Jul 20 2013

Status

approved