a(n) = A036229(n) - 111...1 (with n 1's).

Terms

a(0) =1a(1) =0a(2) =100a(3) =1000a(4) =1100a(5) =10a(6) =100a(7) =110100a(8) =1010a(9) =10a(10) =10010a(11) =100000a(12) =10110a(13) =1110a(14) =1000010a(15) =1011000a(16) =1010a(17) =1000a(18) =0a(19) =101010a(20) =10000a(21) =100000a(22) =0a(23) =1000000a(24) =1011000a(25) =101100a(26) =111100a(27) =1110a(28) =100010a(29) =1010000