表格开始
..0.....0.......2.........2...........5..............8...............15
..0.....2.......6........20..........66............210..............658
..2.....6......33.......180........1024...........5228............26670
..2....20.....180......1722.......15484.........129914..........1079792
..5....66....1024.....15484......223261........3086910.........41706415
..8...210....5228....129914.....3086910.......69493918.......1529974962
.15...658...26670...1079792....41706415.....1529974962......54755104784
.26..2036..134438...8845592...555052466....33126514762....1926654903560
.46..6236..670407..71540206..7290902341...707716447612...66854006751350
.80.18928.3310176.572555634.94741575142.14949807134092.2293311539588776