Sequence A115776 in binary.

Terms

a(0) =1111a(1) =11110a(2) =11111a(3) =101101a(4) =101111a(5) =111100a(6) =111101a(7) =111110a(8) =111111a(9) =1011010a(10) =1011110a(11) =1011111a(12) =1111000a(13) =1111010a(14) =1111100a(15) =1111101a(16) =1111110a(17) =1111111a(18) =10100101a(19) =10101101a(20) =10101111a(21) =10110100a(22) =10110101a(23) =10111100a(24) =10111101