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    figurate number

    A number sequence found by creating consecutive geometrical figures from arrangements of equally spaced points. Here is an example:

    1 3 5 7
    * * * *
      ** * *
        *** *
          ****


    The points can be arranged in one, two, three, or more dimensions. There are many different kinds of figurate numbers, such as polygonal numbers and tetrahedral numbers.


    Related categories

       • TYPES OF NUMBERS
       • MATHEMATICS



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