Question 1074719: 3, -6, 12, 4, 20, ?
Answer by KMST(5328) (Show Source):
You can put this solution on YOUR website! Patterns are in the eye of the pattern designer.
If you know the pattern designer,
you may be successful at reading his/her mind.
Maybe the next terms are 13, 27, 21, 33.
The first differences are




Following a pattern apparent (to me) in first differences -9, 18, -8, 16,
you could expect the next differences to be -7, 14, -6, 12, .....
Then, the next terms would be
,
,
,
,
and so on.
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