[Ch-01] Case when k is equal to the order of the set

[ghost]

In case k is equal to the order of the set we have this kind of list:

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

Maybe it could be useful to specify this particular case.