n^(- two *n)*(one + n)^(two + two *n)*Abs(factorial(n)/factorial(one + n))
n to the power of ( minus 2 multiply by n) multiply by (1 plus n) to the power of (2 plus 2 multiply by n) multiply by Abs(factorial(n) divide by factorial(1 plus n))
n to the power of ( minus two multiply by n) multiply by (one plus n) to the power of (two plus two multiply by n) multiply by Abs(factorial(n) divide by factorial(one plus n))