[1,1,1,2,2,1,1,3,6,6,3,1,1,4,12,18,18,12,4,1,1,5, 20,40,60,60,40,20,5,1,1,6,30,75,150,200,200,150, 75,30,6,1,1,7,42,126,315,525,700,700,525,315,126, 42,7,1,1,8,56,196,588,1176,1960,2450,2450,1960, 1176,588,196,56,8,1]