Numbers in binary representation with odd length.

Terms

a(0) =0a(1) =1a(2) =100a(3) =101a(4) =110a(5) =111a(6) =10000a(7) =10001a(8) =10010a(9) =10011a(10) =10100a(11) =10101a(12) =10110a(13) =10111a(14) =11000a(15) =11001a(16) =11010a(17) =11011a(18) =11100a(19) =11101a(20) =11110a(21) =11111a(22) =1000000a(23) =1000001a(24) =1000010a(25) =1000011a(26) =1000100a(27) =1000101a(28) =1000110a(29) =1000111