[1,1,1,1,2,1,1,3,3,1,1,4,6,4,1,1,5,10,10,5,1,1,6, 15,0,15,6,1,1,7,21,0,0,21,7,1,1,8,28,0,0,0,28,8,1, 1,9,36,0,0,0,0,36,9,1,1,10,45,0,0,0,0,0,45,10,1]