A023181 Numbers k such that Fibonacci(k) == 55 (mod k).

1, 2, 4, 5, 7, 10, 14, 15, 105, 110, 119, 190, 220, 290, 310, 410, 590, 610, 710, 790, 874, 890, 1010, 1090, 1310, 1390, 1490, 1510, 1790, 1810, 1910, 1990, 2110, 2170, 2290, 2390, 2410, 2510, 2690, 2710, 2726, 2810, 2860, 3110, 3310, 3490, 3590, 3790, 3890

Offset

1,2

Links

Table of n, a(n) for n=1..49.

Mathematica

Select[Range[3900], Mod[Fibonacci[#]-55, #]==0&] (* Harvey P. Dale, Sep 22 2021 *)

Crossrefs

Cf. A000045.

Sequence in context: A056716 A223729 A190235 * A123065 A115334 A167792

Adjacent sequences: A023178 A023179 A023180 * A023182 A023183 A023184

Keyword

nonn

Author

David W. Wilson

Status

approved