[1,1,3,6,17,42,118,320,861,2442,6658,18686,52100, 146832,410990,1161722,3282403,9283968,26336598, 74712158,212613094,605118528,1726261816, 4926677982,14079210098,40247549662,115175011608, 329707161766,944566633454,2707713181042]