Hexagonal pyramidal number: Difference between revisions

Revision as of 14:48, 31 October 2007

Latest revision as of 19:57, 24 December 2021

(14 intermediate revisions by 11 users not shown)

Line 1:

#REDIRECT [[Pyramidal number]]

A '''hexagonal [[pyramidal number]]''' is a number formed by adding the first few hexagonal numbers. The first few numbers are 1, 7, 22, 50, 95.

{{R from merge}}

The numbers have the form:

<math>{n(n+1)(4n-1)}\over6</math>

== References ==

*[http://mathworld.wolfram.com/HexagonalPyramidalNumber.html Hexagonal pyramidal number at MathWorld]

{{numtheory-stub}}

[[Category:Figurate numbers]]

[[fr:Nombre pyramidal hexagonal]]