Question 1208497
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When a person comes to the forum with similar questions, it is a sign of mental degeneration.


This is a sign that a person does not understand fundamentally the essence of things in the nature.



The point is that the sequence of numbers itself does not determine "the next term". 

In order for a sequence determines next term, an additional condition should be imposed, which is not presented in this problem.



When somebody gives you such a "problem", it means that this person either is mathematically illiterate 
or wants to take your time and/or your money leaving nothing in exchange to you.



In other words, when someone gives you a problem like this, 
keep an eye on your pockets so as not to end up a fool.



Such problems do not teach Mathematics, but on the contrary, corrupt the mind.



They are only good to raise demagogues.