Here are a few sequences:

20,6,4,3,2,2,2 etc.
10,4,3,2,2,2etc.
16,5,2,2,2 etc.
60,12,6,4,3,2,2etc.

Each sequence follows the exact same rule and when it says 'etc.' the last digit is repeated an infinite number of times. (The first number in each sequence is random and does not follow the rule).

What is the rule for these sequences?

each number following the is the number of factors the current one has e.g 20 has6 factors, 20,10,5,4,2,1

Posted by chuck on 2004-02-03 15:33:42