[1,4,20,80,305,1072,3622,11676,36450,110240, 324936,935076,2635338,7285560,19795370,52930360, 139462956,362471020,930186694,2358867240, 5915606398,14680528648,36073675792,87816701332, 211891552280,506981067168,1203337174120, 2834401172172]