Binary expansion of n followed by its reverse complement.

Terms

a(0) =10a(1) =1010a(2) =1100a(3) =100110a(4) =101010a(5) =110100a(6) =111000a(7) =10001110a(8) =10010110a(9) =10101010a(10) =10110010a(11) =11001100a(12) =11010100a(13) =11101000a(14) =11110000a(15) =1000011110a(16) =1000101110a(17) =1001010110a(18) =1001100110a(19) =1010011010a(20) =1010101010a(21) =1011010010a(22) =1011100010a(23) =1100011100a(24) =1100101100a(25) =1101010100