[1,2,8,25,78,238,721,2174,6540,19649,58994,177058, 531297,1594090,4782592,14348297,43045734, 129138566,387417905,1162257286,3486777636, 10460342257,31381041898,94143150170,282429490113, 847288534418,2541865706936,7625597288569]