[TI-83+] Using Recursive Sequences in a Program [solved]

[MGOS]

Hey, for my Maths I have to make a program to calculate increasing and stuff, and it needs to have recursive sequences as well.
The problem is, I can't find the right commands and variables in the program editor.   
How would I store a recursive equation ( u(n) = u(n)*2 as an easy example) into u, v or w?
And how can I set the start ( uMin and u(nMin) = {x} )? 

I hope there is somebody who can help me.

[blue_bear_94]

Code: Select All | Copy To Clipboard

1 2	"2u(n-1->u {X->u(nMin

[MGOS]

Code: Select All | Copy To Clipboard

1 2	"2u(n-1->u {X->u(nMin

Is it really THAT simple? I'm gonna try that out now. * MGOS types it in the calc and wonders how easy that was.

Thanks a lot.