n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 17 |
4 | 65 |
5 | 233 |
6 | 808 |
7 | 2766 |
8 | 9362 |
9 | 31426 |
10 | 104822 |
11 | 1054033 |
12 | 11005043 |
13 | 114547418 |
14 | 1188747707 |
15 | 12305003905 |
16 | 127088210000 |
17 | 1310019623181 |
18 | 13480213329659 |
19 | 138498072735374 |
20 | 1420979139942389 |
21 | 14560878466498901 |
22 | 149036972532711329 |
23 | 1523880579042109897 |
[1,4,17,65,233,808,2766,9362,31426,104822,1054033, 11005043,114547418,1188747707,12305003905, 127088210000,1310019623181,13480213329659, 138498072735374,1420979139942389, 14560878466498901,149036972532711329, 1523880579042109897] |