n | a(n) |
---|---|
1 | 18 |
2 | 38 |
3 | 456 |
4 | 854 |
5 | 9192 |
6 | 17132 |
7 | 183474 |
8 | 341876 |
9 | 3660378 |
10 | 6820478 |
11 | 73024176 |
12 | 136067774 |
13 | 1456823232 |
14 | 2714535092 |
15 | 29063440554 |
16 | 54154634156 |
17 | 579811987938 |
18 | 1080378148118 |
19 | 11567176318296 |
20 | 21553408328294 |
[18,38,456,854,9192,17132,183474,341876,3660378, 6820478,73024176,136067774,1456823232,2714535092, 29063440554,54154634156,579811987938, 1080378148118,11567176318296,21553408328294] |