Expansion of (1+z)/(1-z) - 2*Sum_{m>=1} z^(m^2)/(1-z^((m+1)^2)).

Terms

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