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Given ANY number, it is easy to find a polynomial of order 4 that will generate the above four numbers and the selected fifth.

The simplest polynomial or order 3 that will generate the above numbers is

Un = (-53n3 + 399n2 - 880n + 552)/6 for n = 1, 2, 3, ... and accordingly, the next number is -83.

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Q: What is the next number in this pattern 3 -6 12 4?
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