n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 43 |
6 | 118 |
7 | 337 |
8 | 1025 |
9 | 3479 |
10 | 13056 |
11 | 48817 |
12 | 199477 |
13 | 898135 |
14 | 4051128 |
15 | 18652459 |
16 | 93872040 |
17 | 492132207 |
18 | 2658676056 |
19 | 14841915049 |
20 | 84757413959 |
21 | 517609038551 |
22 | 3384739112196 |
23 | 21742333893177 |
24 | 141230605251082 |
25 | 1001795869162783 |
26 | 7387581072984938 |
[1,1,3,7,18,43,118,337,1025,3479,13056,48817, 199477,898135,4051128,18652459,93872040,492132207, 2658676056,14841915049,84757413959,517609038551, 3384739112196,21742333893177,141230605251082, 1001795869162783,7387581072984938] |