Question 1130358
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There is no formal mathematics to ANY problem like this.  Finding "the" answer is no more than a guessing game.<br>
It is very likely that there are many different logical ways to get this sequence of numbers; the different ways will probably yield different next numbers.<br>
Furthermore, ANY next number will make a valid sequence.<br>
If you are so inclined, take a few seconds, or maybe a minute or two, to see if you can find a logical way to get the given sequence of numbers, and use that logical way to predict the next number.<br>
But realize that any answer you come up with, either by logic or by a random guess, might not be the "right" answer.<br>
So it is a total waste of time to spend any significant amount of time trying to answer a question like this.