[0,0,0,6,30,90,252,756,2268,6642,19602,58806, 176904,530712,1592136,4780782,14351094,43053282, 129146724,387440172,1162320516,3486843450, 10460294154,31380882462,94143001680,282429005040, 847287015120,2541864234006,7625599079310]