ah shit. You are right, thanks a lot!

In order for your answer not to be too messy (hyperfactorial of 100 is 9015 digits long) give the answer modulo 1000000007.

You forgot to apply the modulo.

The hyperfactorial above and equal 6 is not right guys? It is not even possible that is has the same length of digits (78371783) as H(5). The solution 4031078400000 should be right. I got a mistake message even tho, my code was right.

I would settle for 'arrayOfSheep' just to deal with the grammar issue. :)

Oh?

>>> count_sheeps([])
0
>>> count_sheeps([False])
0
>>> count_sheeps([False, False])
0
>>>

This doesn't work if, there is no "True" in the list. This code gives you a None and a None is not a 0. Like they want it in the test.

did not anybody solve that with the replace() function?

I like your solution... very clever