Final 2 digits of 9^n.

Terms

a(0) =1a(1) =9a(2) =81a(3) =29a(4) =61a(5) =49a(6) =41a(7) =69a(8) =21a(9) =89a(10) =1a(11) =9a(12) =81a(13) =29a(14) =61a(15) =49a(16) =41a(17) =69a(18) =21a(19) =89a(20) =1a(21) =9a(22) =81a(23) =29a(24) =61a(25) =49a(26) =41a(27) =69a(28) =21a(29) =89