A pyramidal number is a figurate number that represents a pyramid with a base and a given number of sides. The term is most often used to refer to square pyramidal numbers, which have four sides, but it can also refer to:
- Triangular pyramidal number (three sides)
- Square pyramidal number (4 sides)
- Pentagonal pyramidal number (five sides)
- Hexagonal pyramidal number (six sides)
- Heptagonal pyramidal number (seven sides)
the formula for a r-gonal pyramid number is:
This is a disambiguation page: a list of articles associated with the same title. If you arrived here from another page, you may wish to go back to that page and change the link to point directly to the intended article. |