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A023175 Numbers k such that Fib(k) == 3 (mod k). 0
1, 2, 4, 76, 124, 196, 244, 316, 374, 436, 556, 604, 724, 796, 844, 916, 964, 1084, 1324, 1396, 1516, 1636, 1684, 1756, 1768, 1804, 1996, 2164, 2284, 2404, 2476, 2524, 2644, 2764, 2836, 2956, 3004, 3076, 3244, 3316, 3436, 3676, 3964, 4036, 4084, 4156, 4204 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..47.

MATHEMATICA

Select[Table[{p, Fibonacci[p]}, {p, 4500}], Mod[Last[#]-3, First[#]]==0&][[All, 1]] (* Harvey P. Dale, Sep 22 2021 *)

CROSSREFS

Sequence in context: A292414 A053550 A018378 * A276740 A006688 A292711

Adjacent sequences:  A023172 A023173 A023174 * A023176 A023177 A023178

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified January 23 07:56 EST 2022. Contains 350510 sequences. (Running on oeis4.)