Euler's Number to Power of Itself

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Example of Power to Real Number

Euler's Number $e$ to the power of itself is approximately equal to:

$e^e \approx 15 \cdotp 15426 \, 22414 \, 79264 \, 18976 \, 0430 \ldots$

This sequence is A073226 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).