An exponential generating function for the integer sequence , , ... is a function such that
(1)
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(2)
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An exponential generating function for the integer sequence , , ... is a function such that
(1)
| |||
(2)
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Weisstein, Eric W. "Exponential Generating Function." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ExponentialGeneratingFunction.html