[0,1,2,6,20,70,252,924,3432,12705,45430,152438, 472836,1352078,3578680,8827080,20439984,44745513, 93185994,185640070,355452020,656846190,1175604980, 2044130980,3462303000,5725877625,9264588606, 14692562262,22874204836,35009334470]