The sequence "0، 1، 2، ..." represents the set of non-negative integers, starting from zero and increasing by one with each subsequent number. This sequence is fundamental in mathematics and is used in various fields, including computer science and statistics. The number 0 is unique as it represents the absence of quantity, while 1 is the first positive integer. These numbers are used for counting, ordering, and performing calculations. In everyday life, we encounter this sequence when counting objects, measuring time, or organizing items. Understanding this basic numerical sequence is essential for grasping more complex mathematical concepts.