Category:Pyramidal Numbers
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This category contains results about Pyramidal Numbers.
Definitions specific to this category can be found in Definitions/Pyramidal Numbers.
The pyramidal numbers are integers defined as sums of sequences of polygonal numbers as follows.
Let $\map P {k, n}$ be the $n$th $k$-gonal number.
Then the $n$th $k$-gonal-based pyramidal number $\map Y {k, n}$ is defined as:
- $\ds \map Y {k, n} = \sum_{i \mathop = 1}^n \map P {k, i}$
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Pyramidal Numbers"
The following 9 pages are in this category, out of 9 total.