[1,1,1,1,2,1,1,3,3,1,1,4,6,4,1,1,5,5,5,5,1,1,6,15, 20,15,6,1,1,7,7,7,7,7,7,1,1,8,28,8,70,8,28,8,1,1, 9,9,84,9,9,84,9,9,1,1,10,45,10,45,252,45,10,45,10, 1]