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 not the number of years we have behind us, but the number we have before us, that makes us careful and responsible and determined to find out the truth about everything.”
    —George Bernard Shaw (1856–1950)