n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 32 |
5 | 160 |
6 | 830 |
7 | 4405 |
8 | 23798 |
9 | 130498 |
10 | 724748 |
11 | 4069258 |
12 | 23064608 |
13 | 131809108 |
14 | 758696492 |
15 | 4394825647 |
16 | 25600773272 |
17 | 149877922228 |
18 | 881394158558 |
19 | 5204245242208 |
20 | 30841413359186 |
21 | 183381577399006 |
22 | 1093695670905206 |
[1,1,2,7,32,160,830,4405,23798,130498,724748, 4069258,23064608,131809108,758696492,4394825647, 25600773272,149877922228,881394158558, 5204245242208,30841413359186,183381577399006, 1093695670905206] |