Derivative of n in base 3.

Terms

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