Final 2 digits of 4^n.

Terms

a(0) =1a(1) =4a(2) =16a(3) =64a(4) =56a(5) =24a(6) =96a(7) =84a(8) =36a(9) =44a(10) =76a(11) =4a(12) =16a(13) =64a(14) =56a(15) =24a(16) =96a(17) =84a(18) =36a(19) =44a(20) =76a(21) =4a(22) =16a(23) =64a(24) =56a(25) =24a(26) =96a(27) =84a(28) =36a(29) =44