a(0) = 0, a(1) = 2, a(2) = 1, and for any n > 2 with ternary representation n = Sum_{i=0..k} t_i * 3^i, a(n) = Sum_{i=0..k} a(t_i) * 3^a(i).
A300956
a(0) = 0, a(1) = 2, a(2) = 1, and for any n > 2 with ternary representation n = Sum_{i=0..k} t_i * 3^i, a(n) = Sum_{i=0..k} a(t_i) * 3^a(i).
Terms
- a(0) =0a(1) =2a(2) =1a(3) =18a(4) =20a(5) =19a(6) =9a(7) =11a(8) =10a(9) =6a(10) =8a(11) =7a(12) =24a(13) =26a(14) =25a(15) =15a(16) =17a(17) =16a(18) =3a(19) =5a(20) =4a(21) =21a(22) =23a(23) =22a(24) =12a(25) =14a(26) =13a(27) =774840978a(28) =774840980a(29) =774840979
External references
- oeis: A300956