G.f. A(x) satisfies: Product_{n=-oo..+oo} 1 + x^n*(1 + A(x)^n)^n = 4.

A294474

G.f. A(x) satisfies: Product_{n=-oo..+oo} 1 + x^n*(1 + A(x)^n)^n = 4.

Terms

    a(0) =1a(1) =-1a(2) =-7a(3) =5a(4) =87a(5) =-189a(6) =-1941a(7) =6515a(8) =49795a(9) =-229867a(10) =-1343239a(11) =8320303a(12) =36790861a(13) =-305098413a(14) =-989510467a(15) =11255950785a(16) =24982028631a(17) =-415990506193a(18) =-537407696757

External references