Sequence A115768 in binary.

Terms

a(0) =1011a(1) =10110a(2) =101011a(3) =101100a(4) =1010110a(5) =1011000a(6) =10101011a(7) =10101100a(8) =10110000a(9) =10110011a(10) =11001011a(11) =101010110a(12) =101011000a(13) =101100000a(14) =101100011a(15) =101100110a(16) =110001011a(17) =110010110a(18) =1010101011a(19) =1010101100a(20) =1010110000