-8618

Appears in sequences

• Negative integers n such that in balanced ternary representation the number of occurrences of each trit doubles when n is squared.at n=24A257868
• G.f.: Sum_{n>=0} (x^(n+1) + i)^n / (1 + i*x^n)^(n+1), in which the constant term is taken to be 1.at n=41A323690