[0,0,1,2,4,8,17,36,83,202,519,1382,3766,10352,28551,78756,217224,599542,1657983,4598766,12803044,35785664,100412731,282753476,798690091,2262087814,6421507153,18265543282,52047980674,148554917816,424656556001,1215691192244]