n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 119 |
6 | 711 |
7 | 4981 |
8 | 39903 |
9 | 359537 |
10 | 3598696 |
11 | 39615626 |
12 | 475687487 |
13 | 6187239476 |
14 | 86661001741 |
15 | 1300430722200 |
16 | 20814114415224 |
17 | 353948328666101 |
18 | 6372804626194310 |
19 | 121112786592293964 |
20 | 2422786846761133394 |
21 | 50888617325509644404 |
22 | 1119751494628234263303 |
[0,1,2,6,24,119,711,4981,39903,359537,3598696, 39615626,475687487,6187239476,86661001741, 1300430722200,20814114415224,353948328666101, 6372804626194310,121112786592293964, 2422786846761133394,50888617325509644404, 1119751494628234263303] |