Here is the function:

Basically, it starts at x=0, it multiplies x by 61 and adds 32 and i.Code:x(n) = 61x(n-1) + i + 32

Assume i is 12,

1st time: x=44

2nd time: x=2728

I need to get x(n-1) starting from the last number

So for example if I supply x=2728, the answer will give me a reduced value of (44).