表格开始
...1.....2.......4.........7..........12............21..............37
...2....10......28........86.........279...........869............2728
...4....28.....127.......641........3237.........16248...........81661
...7....86.....641......5389.......46786........396806.........3372222
..12...279....3237.....46786......684894.......9703136.......138882856
..21...869...16248....396806.....9703136.....229596763......5498685275
..37..2728...81661...3372222...138882856....5498685275....221204933878
..65..8596..410199..28724880..1988460073..131626644289...8887761158698
.114.27004.2061212.244493344.28434977556.3147315906687.356576134627608