Best calculator for recurrence relations

[carey]

I have begun using recurrence relations (mainly three-term) and am wondering if anyone finds a particular calculator model's sequence/recursive mode to be more powerful than others? While not difficult to write programs to work with expressions like A(n) = A(n-1) + A(n-2), the convenience of a built-in feature is nice. I'm curious if anyone knows of any calculator model with a sequence/recursive mode that handles simultaneous recurrence relations or more than three terms? Thanks!