5^n mod 23.

Terms

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