Question 1196635
.


You are not sure what the answer is.


Meanwhile, I myself am not sure what the question is - - - so dark and unclear is its meaning.



                When a  " problem "  comes in such formulation, 

        it is only good to scare people around - - - not to teach them.



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A normal mathematical formulation,  in normal mathematical language,  is  THIS


<pre>
    Find a recursive formula for sequence 4, 8, 12, 16, 20.
</pre>


That's all. &nbsp;No more words.



- - - - - &nbsp;&nbsp;&nbsp;&nbsp;To a person who created/composed this &nbsp;" problem ", &nbsp;I'd like to say &nbsp;THIS &nbsp;&nbsp;&nbsp;&nbsp;- - - - 



Hey, &nbsp;without knowing musical notations and elementary musical grammar, &nbsp;arpeggio and solfeggio, 

would you try to write a music symphony ?


&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The answer is &nbsp;129% &nbsp;&nbsp;NO.



Then &nbsp;WHY &nbsp;do you try to compose &nbsp;Math problems, &nbsp;without having adequate knowledge on how to do it ?