[2,-3,2,-3,6,-11,18,-30,56,-105,186,-335,630, -1179,2182,-4080,7710,-14588,27594,-52377,99858, -190743,364722,-698870,1342176,-2581425,4971008, -9586395,18512790,-35792449,69273666,-134215680, 260300986]