In mathematics, a centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers. The centered pentagonal number for a given position is given by a specific formula in terms of that position. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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Source Wolfram MathWorld: Centered Pentagonal Number
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1. Centered Pentagonal Number (Wikipedia)
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In mathematics, a centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers.
Wolfram MathWorld: Centered Pentagonal Number
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Number Theory Special Numbers
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