DLMF:26.5.E2 (Q7797)

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DLMF:26.5.E2
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    Defining formula
    ∑ n = 0 ∞ C ⁡ ( n ) ⁢ x n = 1 - 1 - 4 ⁢ x 2 ⁢ x , superscript subscript 𝑛 0 Catalan-number 𝑛 superscript 𝑥 𝑛 1 1 4 𝑥 2 𝑥 {\displaystyle{\displaystyle\sum_{n=0}^{\infty}C\left(n\right)x^{n}=\frac{1-% \sqrt{1-4x}}{2x},}}
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    DLMF id
    DLMF:26.5.E2
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