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What came first? (Posted on 2002-12-04)

Find the first number in the following series. (there may be more than one answer?)

?, 2 ,3 , 8, 30, 144, 840, 5760, 45360...

See The Solution Submitted by Cory Taylor

Rating: 3.0000 (8 votes)

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

I get the sequence, but not the first number

| Comment 1 of 12

The sequence is as follows:
2 * (1 + 1/2) = 3
3 * (2 + 2/3) = 8
8 * (3 + 3/4) = 30
...
45360 * (8 + 8/9) = 403,200.

This would make the first number solve the equation:
x * (0 + 0/1) = 2, or x * 0 = 2.
Am I missing something?

Posted by pleasance on 2002-12-05 02:10:25

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