perplexus.info :: Sequences : Lotsa Sequences!

Lotsa Sequences! (Posted on 2003-10-26)

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?

Submitted by Lewis

Rating: 3.7778 (9 votes)

Solution: (Hide)

Each number (except the first of each sequence) is the amount of factors the previous number has
eg 16 is followed by 5 because 16 has 5 factors - 1,2,4,8 & 16.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Solution	K Sengupta	2007-04-20 15:13:05
duh simple	chuck	2004-02-03 15:33:42
re: idea	Victor Zapana	2003-10-27 21:32:23
idea	Julia	2003-10-26 21:08:28
re: similar sequence	Trevor Leitch	2003-10-26 14:58:47
similar sequence	Tristan	2003-10-26 10:20:44

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