a(n) = (# 2's)-(# 3's) in first n terms of A030604.

Terms

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