[1,1,3,12,55,273,1428,7752,43263,246675,1430715, 8414640,50067108,300830572,1822766520,11124755664, 68328754959,422030545335,2619631042665, 16332922290300,102240109897695,642312451217745, 4048514844039120,25594403741131680, 162250238001816900]