How many sequences of length 4 can be made when each component of the sequence can take 5 different values? How many sequences of length 5 can be made when each component of the sequence can take 4 different values? In general, if 3 ≤ n1 ≤ n2, are there more sequences of length n1 with n2 possible values for each component, or more sequences of length n2 with n1 possible values for each component?