Base-2 digital convolution sequence (with smallest digits).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =2a(6) =2a(7) =3a(8) =1a(9) =3a(10) =2a(11) =4a(12) =2a(13) =4a(14) =3a(15) =5a(16) =1a(17) =2a(18) =3a(19) =4a(20) =2a(21) =3a(22) =4a(23) =5a(24) =2a(25) =3a(26) =4a(27) =5a(28) =3a(29) =4