A023178 - OEIS

%I #7 Sep 21 2021 13:57:46

%S 1,2,7,8,14,33,187,217,553,713,1147,1337,1353,1673,1687,1897,1911,

%T 1927,2233,2807,3017,3143,3233,3353,3503,4087,4263,4487,5033,5257,

%U 5383,6167,6377,6503,6937,7063,7273,8057,8407,8617,8743,8953,9527,9863,10073,10297

%N Numbers k such that Fib(k) == 13 (mod k).

%K nonn

%O 1,2

%A _David W. Wilson_