G.f. A(x) satisfies Sum_{n=-oo..+oo} (x^n - A(x))^n = Sum_{n>=0} x^(n^2).

Terms

a(0) =1a(1) =1a(2) =0a(3) =-1a(4) =2a(5) =15a(6) =27a(7) =-1a(8) =-76a(9) =19a(10) =719a(11) =1687a(12) =184a(13) =-5976a(14) =-3749a(15) =44093a(16) =130933a(17) =42026a(18) =-512833a(19) =-667101a(20) =2976177a(21) =11391169a(22) =6608432a(23) =-45604863a(24) =-87819235a(25) =202544340a(26) =1053407806a(27) =922859161a(28) =-4085924365a(29) =-10600384406