Binary expansion of numbers in A171781.

Terms

a(0) =10a(1) =11a(2) =100a(3) =111a(4) =1000a(5) =1010a(6) =1101a(7) =1111a(8) =10000a(9) =10010a(10) =10100a(11) =10110a(12) =11001a(13) =11011a(14) =11101a(15) =11111a(16) =100000a(17) =100010a(18) =100100a(19) =100110a(20) =101000a(21) =101010a(22) =101100a(23) =101110a(24) =110001a(25) =110011a(26) =110101a(27) =110111a(28) =111001a(29) =111011