[1,1,1,1,2,1,1,3,3,1,1,4,10,4,1,1,5,20,20,5,1,1,6, 39,68,39,6,1,1,7,63,175,175,63,7,1,1,8,100,392, 618,392,100,8,1,1,9,144,786,1764,1764,786,144,9,1, 1,10,205,1440,4420,6352,4420,1440,205,10,1,1,11, 275,2475,9900]