Description Usage Arguments Value Author(s)
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, ...
1 | ntri(n)
|
n |
Positive integer value for sequence length. |
Returns an integer vector of length n
.
Sven E. Templer (sven.templer@gmail.com)
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