表格开始
......1.......1.........1..........1...........1...........1...........1
......1.......3........10.........35.........126.........462........1716
......2.......7........39........265........1802.......12239.......84614
......6......27.......208.......2386.......32208......445970.....6039160
.....24.....138......1576......29387......679735....17761798...490407156
....120.....900.....14830.....469605....19027506...873319806.44064461220
....720....7110....168500....8889180...651123366.54381881627
...5040...66150...2247280..196362845.25708254936
..40320..708120..34423760.4969038690
.362880.8573040.596248800