19^n mod 191.

Terms

a(0) =1a(1) =19a(2) =170a(3) =174a(4) =59a(5) =166a(6) =98a(7) =143a(8) =43a(9) =53a(10) =52a(11) =33a(12) =54a(13) =71a(14) =12a(15) =37a(16) =130a(17) =178a(18) =135a(19) =82a(20) =30a(21) =188a(22) =134a(23) =63a(24) =51a(25) =14a(26) =75a(27) =88a(28) =144a(29) =62