Cahen's constant
From specialfunctionswiki
Cahen's constant $C$ is defined by $$C=\displaystyle\sum_{k=0}^{\infty} \dfrac{(-1)^k}{s_k-1}=0.64341054629\ldots,$$ where $s_k$ denotes Sylvester's sequence.
Cahen's constant $C$ is defined by $$C=\displaystyle\sum_{k=0}^{\infty} \dfrac{(-1)^k}{s_k-1}=0.64341054629\ldots,$$ where $s_k$ denotes Sylvester's sequence.
