first commit. Have a tail-recursive version of Ackermann, now trying to make an iterative version. A broken-work-in-progress.
Going ahead with full recursion...
Added todo note.
Adding start to series.py
saving work on series.py. Lucas and Fibonacci complete, one more to go.
done with series.py. Need to finish up ack.py...
Done with Ackermann and sum series assignments.
Merge pull request #31 from jay-tyler/ackermann

Adding my ack.py and series.py assignments