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16 / 109 Holes

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7 hours ago

Catalan’s Constant

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Fibonacci

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Happy Numbers

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Happy Numbers (Long)

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ln 2

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Niven Numbers

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Niven Numbers (Long)

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Pernicious Numbers

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Quine

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Vampire Numbers

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γ

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π

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τ

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φ

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√2

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𝑒

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