👉 Crosiers is a concept in mathematics and computer science that refers to a set of numbers that can be expressed as the sum of two or more distinct numbers. It's often used in combinatorics, particularly when dealing with permutations and combinations. In particular, the number 2 is the only even number that cannot be expressed as the sum of two other even numbers. Therefore, if we have a set of numbers {1, 3, 5}, then any combination of these numbers can
