n - reversal of base 12 digits of n (written in base 10).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =11a(13) =0a(14) =-11a(15) =-22a(16) =-33a(17) =-44a(18) =-55a(19) =-66a(20) =-77a(21) =-88a(22) =-99a(23) =-110a(24) =22a(25) =11a(26) =0a(27) =-11a(28) =-22a(29) =-33