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

Home > Numbers
Up and up (Posted on 2010-05-04) Difficulty: 4 of 5
What is the number of non-decreasing sequences of (n+1) integers from 0 to n?

Example: f(2)=10 i.e. (000,001, 002, 011, 012, 022,111,112,122,222))

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution | Comment 1 of 2
f(n) = product(n+i,i=1..n+1)/(n+1)! = product(n+i,i=2..n+1)/n!
  Posted by Robby Goetschalckx on 2010-05-04 16:09:06
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 (10)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information