[1,2,6,17,48,136,385,1090,3086,8737,24736,70032, 198273,561346,1589270,4499505,12738896,36066072, 102109441,289089922,818464798,2317218881, 6560457280,18573817120,52585767681,148879626882, 421504606246,1193354233937,3378597307248]