n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 61 |
3 | 377 |
4 | 2241 |
5 | 13073 |
6 | 75517 |
7 | 433905 |
8 | 2485825 |
9 | 14218905 |
10 | 81270333 |
11 | 464387817 |
12 | 2653649025 |
13 | 15167050785 |
14 | 86716873725 |
15 | 495998874593 |
16 | 2838240338817 |
17 | 16248650965289 |
18 | 93065296937533 |
19 | 533285164334169 |
20 | 3057236753252161 |
21 | 17534423944871729 |
22 | 100609937775369981 |
[1,9,61,377,2241,13073,75517,433905,2485825, 14218905,81270333,464387817,2653649025, 15167050785,86716873725,495998874593, 2838240338817,16248650965289,93065296937533, 533285164334169,3057236753252161, 17534423944871729,100609937775369981] |