perplexus.info :: Sequences : Cool sequence 1

Cool sequence 1 (Posted on 2003-04-24)

Here is a cool sequence.

1,2,12,288,34560,________...

What goes in the blank?

See The Solution Submitted by Tim Axoy

Rating: 3.5000 (8 votes)

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

More compact notation (spoiler)

| Comment 7 of 9 |

I believe that some people use the notation n!! = n!(n-1)!(n-2)!...2!1!

The series is simply 1!!,2!!,3!!,4!!,5!!,6!!.

Posted by ajosin on 2005-03-22 22:06:05

Please log in:

Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info