n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 4 |
4 | 14 |
5 | 30 |
6 | 107 |
7 | 318 |
8 | 1116 |
9 | 3743 |
10 | 13240 |
11 | 46476 |
12 | 166358 |
13 | 596638 |
14 | 2158829 |
15 | 7839845 |
16 | 28616815 |
17 | 104814161 |
18 | 385269397 |
19 | 1420242629 |
20 | 5249877583 |
21 | 19452536934 |
22 | 72237904034 |
[1,3,4,14,30,107,318,1116,3743,13240,46476,166358, 596638,2158829,7839845,28616815,104814161, 385269397,1420242629,5249877583,19452536934, 72237904034] |