[1,1,2,5,21,88,377,1654,7424,34000,158274,746525, 3559456,17128250,83078147,405754479,1993777057, 9849668910,48892589632,243739139810,1219789105228, 6125813250402,30862120708266,155937956267432, 790019313067409,4012282344217699, 20423575546661000]