08/06/17 10:38:08
>>141
def collatz(n):
r=[]
while n>1:
r.append(n)
n=3*n+1 if n%2 else n/2
return r
print collatz(13) # => [13, 40, 20, 10, 5, 16, 8, 4, 2]
08/06/17 10:38:08
>>141
def collatz(n):
r=[]
while n>1:
r.append(n)
n=3*n+1 if n%2 else n/2
return r
print collatz(13) # => [13, 40, 20, 10, 5, 16, 8, 4, 2]