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

Home > Numbers
An arrangement of 15 (Posted on 2003-01-15) Difficulty: 3 of 5
Arrange the numbers from 1 to 15 in such an order that any two consecutive numbers in the sequence add up to a perfect square.

See The Solution Submitted by levik    
Rating: 4.2941 (17 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
my answer | Comment 7 of 13 |
8, 1, 15, 10, 6, 3, 13, 12, 4, 5, 11, 14, 2, 7, 9

-- I started by listing #s 1-15 and what they could stand next to. After some observation you realize 8 can only border 1 to make a perfect square and 9 can only border 7. Therefore, these must be the end digits. Pretty much after that you work your way inside; matching up what #s border each other. The sequence above is the end result and satisfies the requirements.

-Thanks levik, this was enjoyable...
  Posted by DuCk on 2003-04-15 04:57:54
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information