Base-4 analog of A208059.

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =3a(5) =10a(6) =12a(7) =4a(8) =6a(9) =13a(10) =7a(11) =6a(12) =23a(13) =19a(14) =7a(15) =8a(16) =8a(17) =52a(18) =13a(19) =12a(20) =13731a(21) =369a(22) =76a(23) =20a(24) =22a(25) =25a(26) =86a(27) =81a(28) =22a(29) =24