<PRE><B>Question 983763</B>
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                  1   8   17    30    __    76

Differences         7   9    13   __     __

Diff of Diff          2    4   

Diff of diff of diff     2   


Presuming the difference of the differences of the differences is constant, and then working back UP the table:

                  1   8   17    30    &lt;u&gt;49&lt;/u&gt;    76

Differences         7   9    13   &lt;u&gt;19&lt;/u&gt;    &lt;u&gt;27&lt;/u&gt;

Diff of Diff          2    4    &lt;u&gt;6&lt;/u&gt;    &lt;u&gt;8&lt;/u&gt;   

Diff of diff of diff     2   &lt;u&gt;2&lt;/u&gt;    &lt;u&gt;2&lt;/u&gt;
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John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \ </PRE>