n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 26 |
5 | 152 |
6 | 1202 |
7 | 12840 |
8 | 184060 |
9 | 3552960 |
10 | 92338448 |
11 | 3237738008 |
12 | 153574021372 |
13 | 9872941474544 |
14 | 862850471831896 |
15 | 102720981260693424 |
16 | 16701084112350547436 |
17 | 3715705202756433837504 |
18 | 1133547354784950481434016 |
[1,1,2,6,26,152,1202,12840,184060,3552960, 92338448,3237738008,153574021372,9872941474544, 862850471831896,102720981260693424, 16701084112350547436,3715705202756433837504, 1133547354784950481434016] |