G.f. A(x) satisfies: Product_{n=-oo..+oo} [1 + (-A(x))^n * (1 - (-A(x))^n)^n] = 2*x.
A295131
G.f. A(x) satisfies: Product_{n=-oo..+oo} [1 + (-A(x))^n * (1 - (-A(x))^n)^n] = 2*x.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =16a(4) =64a(5) =291a(6) =1397a(7) =6875a(8) =34450a(9) =175615a(10) =909627a(11) =4776799a(12) =25371720a(13) =136033988a(14) =735186170a(15) =4000684739a(16) =21902649976a(17) =120555380997a(18) =666732745113
External references
- oeis: A295131