[1,1,2,5,20,42,238,511,3311,7423,52273,119739, 894950,2087761,16317275,38616848,312598141, 748492526,6233339701,15070028915,128475055100, 313137867019,2722580871465,6681890398543, 59076953846060,145856049509351,1308316471338448]