n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 8 |
4 | 35 |
5 | 218 |
6 | 253 |
7 | 471 |
8 | 1666 |
9 | 2137 |
10 | 3803 |
11 | 24955 |
12 | 103623 |
13 | 232201 |
14 | 335824 |
15 | 903849 |
16 | 36489784 |
17 | 73883417 |
18 | 110373201 |
19 | 294629819 |
20 | 1288892477 |
21 | 8027984681 |
22 | 9316877158 |
23 | 17344861839 |
24 | 61351462675 |
25 | 78696324514 |
26 | 140047787189 |
27 | 918983047648 |
28 | 3815979977781 |
[1,2,3,8,35,218,253,471,1666,2137,3803,24955, 103623,232201,335824,903849,36489784,73883417, 110373201,294629819,1288892477,8027984681, 9316877158,17344861839,61351462675,78696324514, 140047787189,918983047648,3815979977781] |