Numbers k such that k is a substring of its base-2 representation.

Terms

a(0) =0a(1) =1a(2) =10a(3) =11a(4) =100a(5) =101a(6) =110a(7) =111a(8) =1000a(9) =1001a(10) =1100a(11) =1101a(12) =10000a(13) =10001a(14) =10011a(15) =10100a(16) =10101a(17) =10111a(18) =11000a(19) =11001a(20) =11100a(21) =11101a(22) =100000a(23) =100001a(24) =101000a(25) =101010a(26) =101100a(27) =101101a(28) =101111a(29) =110000