Heptagonal Number/Examples

Examples of Heptagonal Number

The first few heptagonal numbers are as follows:

File:HeptagonNumbers.png

Sequence of Heptagonal Numbers

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

$0, 1, 7, 18, 34, 55, 81, 112, 148, 189, 235, 286, 342, 403, 469, 540, \ldots$