[1,1,6,39,284,2223,18267,155445,1358073,12111306, 109802183,1009001571,9376972698,87978198364, 832223905371,7928413841673,76002832317437, 732578811761670,7095717550127526, 69029297500888522,674181392461483212, 6607910786529613248]