[0,0,1,1,2,2,4,4,4,6,6,6,9,9,9,9,12,12,12,12,16, 16,16,16,16,20,20,20,20,20,25,25,25,25,25,25,30, 30,30,30,30,30,36,36,36,36,36,36,36,42,42,42,42, 42,42,42,49,49,49,49,49,49,49,49,56,56,56,56,56]