👉 In mathematics, "piebaldness" refers to a special case of an infinite sum that is often used in combinatorics and probability theory. It involves adding up all possible ways of arranging n distinct objects without repetition. The formula for this infinite sum is: Σn=1 to infinity (n! / (n-k)!) where n! denotes the factorial of n, which is the product of all positive integers less than or equal to n. This sum counts the number of ways
