n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 35 |
6 | 129 |
7 | 567 |
8 | 2920 |
9 | 16110 |
10 | 103467 |
11 | 717608 |
12 | 5748214 |
13 | 47937957 |
14 | 441139750 |
15 | 4319093093 |
16 | 45963368076 |
[1,1,2,4,12,35,129,567,2920,16110,103467,717608, 5748214,47937957,441139750,4319093093,45963368076] |