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Snake Oil Method

The expansion of the two sides of a sum equality in terms of Polynomials in $x^m$ and $y^k$, followed by closed form summation in terms of $x$ and $y$. For an example of the technique, see Bloom (1995).


Bloom, D. M. ``A Semi-Unfriendly Identity.'' Problem 10206. Solution by R. J. Chapman. Amer. Math. Monthly 102, 657-658, 1995.

Wilf, H. S. Generatingfunctionology, 2nd ed. New York: Academic Press, 1993.

© 1996-9 Eric W. Weisstein