[0,1,4,24,128,704,3840,20992,114688,626688, 3424256,18710528,102236160,558628864,3052404736, 16678649856,91133837312,497964548096, 2720928890880,14867431948288,81237158920192, 443888091267072,2425449636429824, 13252903275855872]