Honestly it seems much more complicated than it has to be.
@rlopez using lprint gives me A*[b*pochhammer(1-c, c)] however using it returns an error as usual.
Error, invalid left hand side of assignment
And I have made sure that I copyed it from a 2D mode, and that I inserted it as a text document.
Using your method has allowed me to write it as a I wanted. The first one is problematic in that you have to use assign rather than := (:= does not write what is wanted, but just subsup(T, 0, 4):= x).
The second one isn't working when I want to call it. I suppose this is because it uses ' on the left hand side.
In the end I will just write in my assigntment that I use T__40 instead. I had hoped that maple had a hidden way to do this, but that's unfortunately not true.