Absolute stability region
Stable region in red.

Coefficients

\begin{align} y_{n + 3} - y_{n + 2} = \frac{3}{8}h f(y_{n + 3}) + \frac{19}{24}h f(y_{n + 2}) - \frac{5}{24}h f(y_{n + 1}) + \frac{1}{24}h f(y_{n})\end{align}

Properties