Least prime factor of A098129(n).

Terms

a(0) =2a(1) =71a(2) =2a(3) =5a(4) =2a(5) =1141871a(6) =2a(7) =3a(8) =2a(9) =58728589a(10) =2a(11) =3a(12) =2a(13) =5a(14) =2a(15) =3a(16) =2a(17) =277a(18) =2a(19) =4643a(20) =2a(21) =29a(22) =2a(23) =5a(24) =2a(25) =3a(26) =2a(27) =37a(28) =2a(29) =3