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?

Submitted by Tim Axoy

Rating: 3.5000 (8 votes)

Solution: (Hide)

24883200.
The formula for the Nth number is 1!*2!*3!*...*(N-2)!*(N-1)!*N!.

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

Subject	Author	Date
Answer	Math Man	2019-10-11 07:32:51
Solution	K Sengupta	2007-03-06 03:36:25
More compact notation (spoiler)	ajosin	2005-03-22 22:06:05
I know	Lewis	2003-05-31 08:47:49
This sequence is super.....	Brian Smith	2003-04-30 07:42:28
Anyone?	Tim Axoy	2003-04-30 02:10:16
No!!!!	Tim Axoy	2003-04-24 09:40:16
I Got It !!	Ravi Raja	2003-04-24 08:11:31
This IS cool!	Tim Axoy	2003-04-24 08:02:54

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