G.f. A(x) satisfies Sum_{n=-oo..+oo} (4^n*A(x)^n - 4*A(x))^(n+1) = 2*theta_4(x) = 2*Sum_{n=-oo..+oo} (-x)^(n^2).
A379764
G.f. A(x) satisfies Sum_{n=-oo..+oo} (4^n*A(x)^n - 4*A(x))^(n+1) = 2*theta_4(x) = 2*Sum_{n=-oo..+oo} (-x)^(n^2).
Terms
- a(0) =1a(1) =4a(2) =16a(3) =255a(4) =4344a(5) =49104a(6) =543744a(7) =8203012a(8) =130252849a(9) =1857148424a(10) =26419178032a(11) =406394717168
External references
- oeis: A379764