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:

    A man who is good enough to shed his blood for his country is good enough to be given a square deal afterwards. More than that no man is entitled to, and less than that no man shall have.
    Theodore Roosevelt (1858–1919)

    The best number for a dinner party is two—myself and a dam’ good head waiter.
    Nubar Gulbenkian (1896–1972)