n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 22 |
4 | 77 |
5 | 297 |
6 | 1217 |
7 | 5192 |
8 | 22807 |
9 | 102427 |
10 | 468067 |
11 | 2169227 |
12 | 10170687 |
13 | 48155437 |
14 | 229916207 |
15 | 1105682842 |
16 | 5350944837 |
17 | 26040130117 |
18 | 127349649297 |
19 | 625556921097 |
20 | 3085016483557 |
21 | 15268791946687 |
22 | 75816909660597 |
[1,2,7,22,77,297,1217,5192,22807,102427,468067, 2169227,10170687,48155437,229916207,1105682842, 5350944837,26040130117,127349649297,625556921097, 3085016483557,15268791946687,75816909660597] |