Question 1196150
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There are many formulas for this sequence.


If to be more precise,  there are  INFINITELY  MANY  formulas for it.



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<U>Comment from student</U> : Please can I get one of the formulas? Thank you




<U>My response</U> : Go to website


https://www.wolframalpha.com/input/?i=interpolating+polynomial+calculator


It is devoted to finding a fitting polynomial for given set of data.


Read its description attentively.


Then input your data and get an approximating polynomial from the solver.


To have a guaranteed integer numbers output, round the polynomial output values to the closest integer at each input.


Also, &nbsp;do not try to apply this polynomial to other input values than listed - 

- you are not guaranteed in getting "right" integer numbers/(outputs).