1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 3, 6, 3, 1, 1, 20, 60, 60, 20, 1, 1, 336, 6720, 10080, 6720, 336, 1, 1, 154440, 51891840, 518918400, 518918400, 51891840, 154440, 1, 1, 8204716800, 1267136462592000, 212878925715456000, 1419192838103040000, 212878925715456000, 1267136462592000, 8204716800, 1