Least k >= 2 with n^(kn) == n (mod kn), also n^(kn-1) == 1 (mod k).

Terms

a(0) =80519a(1) =2a(2) =3a(3) =2a(4) =5a(5) =2a(6) =7a(7) =2a(8) =3a(9) =2a(10) =11a(11) =2a(12) =13a(13) =2a(14) =3a(15) =2a(16) =17a(17) =2a(18) =19a(19) =2a(20) =3a(21) =2a(22) =23a(23) =2a(24) =5a(25) =2a(26) =3a(27) =2a(28) =29a(29) =2