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# Production Equation

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Age 16 to 18

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The general method of solving problems where there is a formula for
the transition from one phase to the next is to solve either a
difference equation (such as this), or a differential equation,
according to whether the model is discrete or continuous.

Yatir from Israel wrote this article on numbers that can be written as $ 2^n-n $ where n is a positive integer.

A sequence of polynomials starts 0, 1 and each poly is given by combining the two polys in the sequence just before it. Investigate and prove results about the roots of the polys.