Reference: Derivations on the $(2n+1)$-dimensional Heisenberg algebra I am looking for a reference (either a book or a paper) which treats the $(2n+1)$-dimensional Heisenberg Lie algebra $\mathfrak h_n$ (see Wikipedia: Heisenberg group for the definition). More particularly, I am looking for a reference in which the space $\mathrm{Der}(\mathfrak h_n)$ is determined. This is of course not difficult to do by hand, but I would guess that this is fairly well-known, so I would rather just refer to some previous work than include the details of it in my own work.

The derivations of the $(2n+1)$-dimensional Heisenberg Lie Algebra have been determined, for example, here in Proposition $9$. The case $n=1$ has been computed at this site here:

Examples of derivation of Lie algebras