Jordan Matrix

A matrix over a ring $R$ whos form is:

$$\left[\begin{array}{ccccc}\lambda & 1& 0& \dots & 0\\ 0& \lambda & 1& \dots & 0\\ ⋮& ⋮& ⋮& \ddots & ⋮\\ 0& 0& 0& \lambda & 1\\ 0& 0& 0& 0& \lambda \end{array}\right]$$