perplexus.info :: Just Math : Sequence number compressed

Sequence number compressed (Posted on 2020-10-28)

Let there be a sequence with a₁=3/2 such that a_n+1=1+n/a_n. Find n such that 2020≤a_n<2021.

No Solution Yet Submitted by Danish Ahmed Khan

Rating: 5.0000 (1 votes)

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

re: computer solution

| Comment 3 of 7 |

(In reply to computer solution by Charlie)

Could you find and share the other end of the solution?

You have an>2020, but how about an<2021?

I noticed the solutions are close to 2019.5^2 = 4078380.25

and am wondering if the other boundary is at 2020.5^2

Posted by Jer on 2020-10-28 11:17:25

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