e/Floyd's triangle

Information
has gloss	eng: Floyd's triangle is a right angled triangular array of natural numbers, used in computer science education. It is named after Robert Floyd. It is defined by filling the rows of the triangle with consecutive numbers, starting with a 1 in the top left corner: <table align=center width=120px;> <tr bgcolor=#F8F8F8 align=center>1 <tr bgcolor=#F8F8F8 align=center>23 <tr bgcolor=#F8F8F8 align=center>456 <tr bgcolor=#F8F8F8 align=center>78910 <tr bgcolor=#F8F8F8 align=center>1112131415
lexicalization	eng: Floyd's Triangle
instance of	c/Triangles of numbers