-2719

Appears in sequences

• Let x(1) = 1 and x(n) = x(n-1)^2 + i for n>1; a(n) is the imaginary part of x(n).at n=5A143849
• G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 + 5*x)) / (1 + 5*x).at n=7A351186