[1,0,1,1,3,4,12,23,71,187,627,1970,6833,23384, 82625,292164,1045329,3750277,13532724,48977625, 177919099,648145255,2368046117,8674199554, 31854078139,117252592450,432576302286, 1599320144703,5925181102878]