Triangular numbers are a sequence of numbers that can form an equilateral triangle when represented as dots. They are generated by the formula $$T_n = \frac{n(n + 1)}{2}$$, where $n$ is a positive integer. This sequence starts with 1, 3, 6, 10, and so on, with each number representing the total number of dots that can be arranged in a triangle for a given row count.
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