gf set the sliders: speed, r and next numer-
A square number, also called a perfect square, is a figurate number of the form S_n=n^2, where n is an integer. The square numbers for n=0, 1, ... are 0, 1, 4, 9, 16, 25, 36, 49, ... music: Captain Cook & Die singenden Saxophone - Que Sera Sera 2007
