Thanks Johan---good point! I hadn't even mentioned the case of tet(n,0) in my description, so I added a sentence about it plus a test. --Will

Hi y'all. Thank you for the feedback. This is my first kata so I've got a good bit of experience and knowledge I still need to gain.

I've changed and added to the description of the kata to hopefully make it clear that the expected result is a number, not a string. Let me know if you think the change isn't clear or should be adjusted for another reason.