n | a(n) |
---|---|
0 | 2 |
1 | 20 |
2 | 252 |
3 | 3432 |
4 | 48620 |
5 | 705432 |
6 | 10400600 |
7 | 155117520 |
8 | 2333606220 |
9 | 35345263800 |
10 | 538257874440 |
11 | 8233430727600 |
12 | 126410606437752 |
13 | 1946939425648112 |
14 | 30067266499541040 |
15 | 465428353255261088 |
16 | 7219428434016265740 |
[2,20,252,3432,48620,705432,10400600,155117520, 2333606220,35345263800,538257874440,8233430727600, 126410606437752,1946939425648112, 30067266499541040,465428353255261088, 7219428434016265740] |