centered triangular number
Centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers
- Instance of
- Subclass of
Overview
All data
7 statements · 14% with external sources · numbers in brackets are citations
- Defining formula
C_{3,n}={\frac {3}{2}}n(n-1)+1={{3n^{2}-3n+2} \over 2}
On other databases
4 identifiers linking centered triangular number across the web's reference databases