%I #7 Sep 21 2021 13:55:51
%S 1,2,4,172,748,1958,6307,22313,106012,530308,1051529,1225708,7188127,
%T 14309369,24168763,30752921,31373381,34217107,38527661,40448867,
%U 56051179,81926788,83917901,87871781,99922929,122614387
%N Numbers k such that Fib(k) == -89 (mod k).
%K nonn
%O 1,2
%A _David W. Wilson_