[1,6,18,46,110,254,574,1278,2814,6142,13310,28670, 61438,131070,278526,589822,1245182,2621438, 5505022,11534334,24117246,50331646,104857598, 218103806,452984830,939524094,1946157054, 4026531838,8321499134,17179869182,35433480190, 73014444030]