Numbers n such that n^2 divides (17^n + 1).

Terms

a(0) =1a(1) =3a(2) =9a(3) =21a(4) =39a(5) =63a(6) =117a(7) =273a(8) =819a(9) =2067a(10) =3081a(11) =6201a(12) =9243a(13) =12807a(14) =14469a(15) =21567a(16) =43407a(17) =48711a(18) =50877a(19) =64701a(20) =89649a(21) =146133a(22) =149331a(23) =163293a(24) =166491a(25) =221169a(26) =340977a(27) =356139a(28) =447993a(29) =489879