-24198

Appears in sequences

• Triangle, read by rows, where T(0,0) = 1, T(n,k) = (-1)^n*(2n+1)*T(n-1,k) - T(n-1,k-1).at n=22A108083
• Negative integers n such that in balanced ternary representation the number of occurrences of each trit doubles when n is squared.at n=34A257868