n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 28 |
4 | 203 |
5 | 1936 |
6 | 23517 |
7 | 349504 |
8 | 6149495 |
9 | 124999936 |
10 | 2881935953 |
11 | 74300836864 |
12 | 2118007738035 |
13 | 66142897770496 |
14 | 2245609694259557 |
15 | 82351536043343872 |
16 | 3244079458377786863 |
17 | 136619472483668525056 |
18 | 6125138252818308310041 |
19 | 291271111111111111081984 |
[0,1,5,28,203,1936,23517,349504,6149495,124999936, 2881935953,74300836864,2118007738035, 66142897770496,2245609694259557,82351536043343872, 3244079458377786863,136619472483668525056, 6125138252818308310041,291271111111111111081984] |