a(n)=(# 1's)-(# 0's) in first n terms of A030604.

Terms

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