Array comprasion as Dictionary keys in C#

Question

I want to create class representing n-dimensional array, but where is a commutative access to its elements. e.g: a[new[] {4, 7, 55}] == a[new[] {55, 4, 7}]

Answer 1

To me seems that GetHashCode have to be changed as it simply returns the hash code of Array object, considering the fact that you use NEW hashcode every time will be different, even if content equal.