Hexagonal pyramidal number
Encyclopedia
A hexagonal pyramidal number
is a number formed by adding the first few hexagonal numbers. The first few numbers are:
The numbers have the form:
Pyramidal number
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:...
is a number formed by adding the first few hexagonal numbers. The first few numbers are:
- 1, 7, 22, 50, 95, 161, 252, 372, 525, 715, 946, 1222, 1547, 1925
The numbers have the form: