The 2"n" elements of D"n" can be written as "e", "r", "r"2, ..., "r""n"−1, "s", "r s", "r2 s", ..., "r""n"−1 "s".
2"n" элементов D"n" можно записать как "e", "r", "r"2, …, "r""n"−1, "s", "r s", "r2 s", …, "r""n"−1 "s".