Numbers n such that 5^A000010(n) == 1 (mod n^2).

Terms

a(0) =2a(1) =20771a(2) =40487a(3) =41542a(4) =80974a(5) =83084a(6) =161948a(7) =643901a(8) =1255097a(9) =1287802a(10) =1391657a(11) =1931703a(12) =2510194a(13) =2575604a(14) =2783314a(15) =3765291a(16) =3863406a(17) =4174971a(18) =5020388a(19) =5151208a(20) =5566628a(21) =7530582a(22) =7726812a(23) =8349942a(24) =10040776a(25) =11133256a(26) =15061164a(27) =15308227a(28) =15453624a(29) =16699884