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4, 12, 84, ...

Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.


Puzzle ID:#8153
Fun:*** (2.22)
Difficulty:**** (3.11)
Submitted By:bluelightnign***
Corrected By:MarcM1098




What is the next number in this series?

4, 12, 84, 3612....

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Nov 14, 2002

Ouch. Good one!
Mar 20, 2004

Another formula: y = x * ((x/2) + 1).
Jan 09, 2008

pretty hard!!!!!
Mar 08, 2009

I did it like cnmne. Not really that hard, don't know why this is rated so difficult.

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