Triangular number
From Encyclopedia of Mathematics
See Arithmetic series.
How to Cite This Entry:
Triangular number. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Triangular_number&oldid=43268
Triangular number. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Triangular_number&oldid=43268