miscset (version 0.4)

ntri: Return Triangular Numbers

Description

Return the series of triangular (/triangle) numbers up to a number of n rows of a triangle. The series has the entry number "A000217" at https://oeis.org/A000217 and starts like this: 0, 1, 3, 6, 10, ...

Arguments

n

Positive integer value for sequence length.

Value

• Returns an integer vector of length n.