perplexus.info :: Numbers : Not too much

Home > Numbers

Not too much (Posted on 2015-02-20)

What is the sum of the reciprocals of all the nonzero
triangular numbers?

No Solution Yet Submitted by Ady TZIDON

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

re: Is this valid? no ! - partial spoiler

| Comment 3 of 8 |

(In reply to Is this valid? by Jer)

-erroneous text erased-

The sum is 2.

Edited on February 21, 2015, 2:12 pm

Posted by Ady TZIDON on 2015-02-20 11:00:23

Please log in:

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

Chatterbox:


perplexus dot info