Polygonal numbers footer

Polygonal numbers

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Triangular numbers

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Square numbers

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Pentagonal numbers

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Hexagonal numbers

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Heptagonal numbers

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Octagonal numbers

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Nonagonal numbers

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Decagonal numbers

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Hendecagonal numbers

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Dodecagonal numbers

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Tridecagonal numbers

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Tetradecagonal numbers

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Pentadecagonal numbers

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Hexadecagonal numbers