perplexus.info :: Just Math : Counting Partitions

Counting Partitions (Posted on 2024-03-21)

The set of natural numbers 1 through N is to be partitioned into two subsets A and B, with one restriction:
The number of elements in A is not a member of A and the number of elements in B is not a member of B.

How many ways are there to make these partitions?

No Solution Yet Submitted by Brian Smith

No Rating

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

Subject	Author	Date
re: solution	Charlie	2024-03-21 16:25:09
Puzzle Answer	K Sengupta	2024-03-21 14:29:16
solution	Charlie	2024-03-21 13:45:01

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:


perplexus dot info