[0,0,1,1,1,2,5,15,58,275,1505,9003,56931,372973,2506312,17165954,119398333,841244274,5993093551,431093402223127471097872286190318744,16826338257708,124605344758149,927910207739261,6945172081954449,52225283886702922]