All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers > Sequences
Go back or double (Posted on 2016-07-25) Difficulty: 2 of 5

This sequence has simple rules with a major hint in the title.

Part 1) Determine the rule to extend the sequence.

Part 2) Find, with no aids beyond a simple calculator, the 1000th term of this sequence.

No Solution Yet Submitted by Jer    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
part 1 | Comment 1 of 5
The rule seems to be to double the previous entry until one or more gaps exist in the sequence. At that point insert the first missing number, then start the doubling again. This quickly becomes an alternation of doubling and filling in, as it doesn't seem the case that doubling fails to leave a gap except at the very beginning. 

Edited on July 25, 2016, 10:19 am
  Posted by Charlie on 2016-07-25 10:17:43

Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (4)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (5)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information