n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 12 |
4 | 102 |
5 | 1062 |
6 | 13812 |
7 | 215592 |
8 | 3896892 |
9 | 80103612 |
10 | 1847079192 |
11 | 47204854992 |
12 | 1324132604232 |
13 | 40446893218632 |
14 | 1336423937927472 |
15 | 47492006442366432 |
16 | 1806200688076918032 |
17 | 73199329659111178512 |
18 | 3149155288463030836512 |
19 | 143338650123433404564672 |
[1,1,2,12,102,1062,13812,215592,3896892,80103612, 1847079192,47204854992,1324132604232, 40446893218632,1336423937927472,47492006442366432, 1806200688076918032,73199329659111178512, 3149155288463030836512,143338650123433404564672] |