n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 41 |
4 | 206 |
5 | 944 |
6 | 4188 |
7 | 17879 |
8 | 74424 |
9 | 303400 |
10 | 1218440 |
11 | 4833416 |
12 | 18992142 |
13 | 74057460 |
14 | 287035502 |
15 | 1107086841 |
16 | 4253339267 |
17 | 16289667330 |
18 | 62230152461 |
19 | 237255014892 |
20 | 903101912666 |
21 | 3433312226666 |
22 | 13039708953325 |
23 | 49488269035164 |
[1,8,41,206,944,4188,17879,74424,303400,1218440, 4833416,18992142,74057460,287035502,1107086841, 4253339267,16289667330,62230152461,237255014892, 903101912666,3433312226666,13039708953325, 49488269035164] |