File:First_six_triangular_numbers.svg · Wikimedia Commons · See Wikimedia Commons
Also known as trigonal number
figurate number
I don't have enough information in the provided context to write an accurate overview of triangular numbers. The context only mentions "figurate number" as a category, but doesn't define what triangular numbers are or explain their significance.
AI-generated from the Wikipedia summary — may contain errors.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).
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