/ is not the same in Python 2 and Python 3 ;-)

• not an issue of the kata, an issue of your code => closing
• recursion is beautiful, but not always the good way
• if you believe there is an issue, you have to document it. The very least here would have been to give the error that is raised. I'd either bet on a time out or a stack overflow. In both cases, with almost 4000 people having already solved the kata, you'd bet that the problem is rather on your side... ;)

Seek for another way, then. :)

• not an issue of the kata, an issue of your code => closing
• recursion is beautiful, but not always the good way
• if you believe there is an issue, you have to document it. The very least here would have been to give the error that is raised. I'd either bet on a time out or a stack overflow. In both cases, with almost 4000 people having already solved the kata, you'd bet that the problem is rather on your side... ;)

Seek for another way, then. :)

tried to solve this using simple recursion.
it won't work even though it does in my computer.