SOLUTION: What number continues the following pattern: 3,-6,12,4,20,?

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Question 923931: What number continues the following pattern: 3,-6,12,4,20,?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What number continues the following pattern: 3,-6,12,4,20,?
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Answer:: 213
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I ran a Quartic Regression program on the data
and got the following lesst-squares regression equation::
y = 4.29x^4 - 51.75x^3 + 216.71x^2 - 361.25x + 195
f(6) = 213
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Cheers,
Stan H.
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