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<p>row, the sequence of products  is related to the base of the <a href="page.php?w=natural_logarithm">natural logarithm</a>, <a href="page.php?w=E_%28mathematical_constant%29">e</a>. Specifically, define the sequence   for all   as follows:   Then, the ratio of successive row products is  and the ratio of these ratios is  The right-hand side of the above equation takes the form of the limit definition of <a href="page.php?w=e_%28mathematical_constant%29"><math>e</math></a> <br/>
* <a href="page.php?w=pi"><math>\pi</math></a> can be found in Pascal's</p><p>
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