n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 16 |
4 | 131 |
5 | 1446 |
6 | 19957 |
7 | 329344 |
8 | 6315129 |
9 | 137942380 |
10 | 3382214291 |
11 | 92014156224 |
12 | 2751300514987 |
13 | 89701699067176 |
14 | 3167429783609925 |
15 | 120428877629249536 |
16 | 4905431165356442993 |
17 | 213120603686615692176 |
18 | 9837426739843075654819 |
19 | 480775495859934668704000 |
[1,1,3,16,131,1446,19957,329344,6315129,137942380, 3382214291,92014156224,2751300514987, 89701699067176,3167429783609925, 120428877629249536,4905431165356442993, 213120603686615692176,9837426739843075654819, 480775495859934668704000] |