Triangular Numbers Generator
Generate triangular numbers. These are numbers that form equilateral triangles: 1, 3, 6, 10, 15, 21...
First 20 Triangular Numbers
1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210
Largest
210.00
Formula
T(n) = n(n+1)/2