Digits of powers of 4.

Terms

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