>>> from calamarsa import calamarsa
>>> calamarsa(4)
[4, 2, 1]
>>> calamarsa(1)
[1]
>>> calamarsa(10)
[10, 5, 16, 8, 4, 2, 1]
>>> calamarsa(13)
[13, 40, 20, 10, 5, 16, 8, 4, 2, 1]