  Kok et.al. [3] introduced Jaco Graphs \emph{(order 1)}. It is hoped that as a
special case, a closed formula can be found for the number of edges of a finite
Jaco Graph $J_n(1)$. However, the algorithms discussed in Ahlbach et.al. [1]
suggest this might not be possible. Finding a closed formula for the number of
edges of a Jaco Graph $J_n(1), n \in \Bbb N$ remains an interesting open
problem. In this note we present three alternative, \emph{formula}.
