Octagonal Number/Examples

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Examples of Octagonal Number

The first few octagonal numbers are as follows:


OctagonNumbers.png


Sequence of Octagonal Numbers

The sequence of octagonal numbers, for $n \in \Z_{\ge 0}$, begins:

$0, 1, 8, 21, 40, 65, 96, 133, 176, 225, 280, 341, \ldots$
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