n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 114 |
6 | 628 |
7 | 4062 |
8 | 30360 |
9 | 251658 |
10 | 2308648 |
11 | 23351268 |
12 | 259031232 |
13 | 3091784268 |
14 | 39697601392 |
15 | 546982720164 |
16 | 8064677125440 |
[1,2,6,24,114,628,4062,30360,251658,2308648, 23351268,259031232,3091784268,39697601392, 546982720164,8064677125440] |