Positive numbers k such that k and 2*k are anagrams in base 4 (written in base 4).

Terms

a(0) =102a(1) =123a(2) =1002a(3) =1020a(4) =1032a(5) =1203a(6) =1230a(7) =1233a(8) =1302a(9) =1323a(10) =10002a(11) =10020a(12) =10032a(13) =10200a(14) =10221a(15) =10320a(16) =10332a(17) =11022a(18) =11223a(19) =12003a(20) =12030a(21) =12033a(22) =12231a(23) =12300a(24) =12330a(25) =12333a(26) =13002a(27) =13020a(28) =13032a(29) =13203