n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 12 |
5 | 286 |
6 | 33592 |
7 | 23178480 |
8 | 108995910720 |
9 | 3973186258569120 |
10 | 1257987096462161167200 |
11 | 3830793890438041335187545600 |
12 | 123051391839834932169117010215648000 |
13 | 45367448380314462649742951646437285434233600 |
14 | 207515126854334868747300581954534054343817468395494400 |
[1,1,1,2,12,286,33592,23178480,108995910720, 3973186258569120,1257987096462161167200, 3830793890438041335187545600, 123051391839834932169117010215648000, 45367448380314462649742951646437285434233600, 20751512685433486874730058195453405434381746839549\ 4400] |