n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 34 |
6 | 90 |
7 | 259 |
8 | 988 |
9 | 2583 |
10 | 5795 |
11 | 37960 |
12 | 101268 |
13 | 424268 |
14 | 3344614 |
15 | 17168723 |
16 | 74282570 |
17 | 351200178 |
18 | 1082950218 |
19 | 5313193819 |
20 | 31439710664 |
21 | 317760710839 |
22 | 1782400663483 |
[1,2,3,7,18,34,90,259,988,2583,5795,37960,101268, 424268,3344614,17168723,74282570,351200178, 1082950218,5313193819,31439710664,317760710839, 1782400663483] |