Triangular number

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

The triangular numbers or triangle numbers are the sequence of positive integers that can be represented as a lattice of points arranged in an equilateral triangle. The triangular lattice representing the

Excerpt from the Wikipedia article “Triangular number”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Auteur inconnu, Copyrighted free use, via Wikimedia Commons.