A coefficient of the Maclaurin series of
(OEIS A002206 and A002207), the multiplicative inverse of the Mercator series function .
A coefficient of the Maclaurin series of
(OEIS A002206 and A002207), the multiplicative inverse of the Mercator series function .
Weisstein, Eric W. "Logarithmic Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LogarithmicNumber.html