# lin_rec1 
# Fig. 3.2 

def v(n0, n1, n2, col):
  if col > 0: 
    print(f"{n1/n0:14.10f}", end ='')
    if (col-1)%5 == 0:
      print()
    v(n1, n2, n0+n1, col-1)  # shift left

v(2, 3, 2, 50)