Square Pyramidal Number

In mathematics, a pyramid number, or square pyramidal number, is a figurate number that represents the number of stacked spheres in a pyramid with a square base. Square pyramidal numbers also solve the problem of counting the number of squares in an n × n grid.

Read more about Square Pyramidal Number:  Formula, Relations To Other Figurate Numbers, Squares in A Square

Famous quotes containing the words square and/or number:

    “I would say it was the coffin of a midget
    Or a square baby
    Were there not such a din in it.”
    —Sylvia Plath (1932–1963)

    “It is the quality of the moment, not the number of days, or events, or of actors, that imports.”
    —Ralph Waldo Emerson (1803–1882)