Numbers k such that Fib(k) == -21 (mod k).

Terms

a(0) =1a(1) =2a(2) =4a(3) =11a(4) =16a(5) =22a(6) =112a(7) =136a(8) =184a(9) =376a(10) =424a(11) =664a(12) =682a(13) =856a(14) =904a(15) =1096a(16) =1288a(17) =1336a(18) =1384a(19) =1576a(20) =1816a(21) =1864a(22) =2056a(23) =2104a(24) =2344a(25) =2536a(26) =2584a(27) =2776a(28) =2824a(29) =3016