A121567 Fibonacci[ (p - 1) ], where p = Prime[n].

1, 1, 3, 8, 55, 144, 987, 2584, 17711, 317811, 832040, 14930352, 102334155, 267914296, 1836311903, 32951280099, 591286729879, 1548008755920, 27777890035288, 190392490709135, 498454011879264, 8944394323791464

Offset: 1

Author

Alexander Adamchuk, Aug 07 2006

Keywords

• nonn

Comments

p = Prime[n] divides a(n) = Fibonacci(p-1) for p = {11,19,29,31,41,59,61,71,79,89,101,109,131,...} = A045468[n] Primes congruent to {1, 4} mod 5.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..200

Crossrefs

Cf. A000045, A045468, A121568, A064739.

Programs

Mathematica

Table[Fibonacci[Prime[n]-1],{n,1,30}]

Formula

a(n) = Fibonacci[ Prime[n] - 1 ].