n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 43 |
4 | 206 |
5 | 987 |
6 | 4729 |
7 | 22658 |
8 | 108561 |
9 | 520147 |
10 | 2492174 |
11 | 11940723 |
12 | 57211441 |
13 | 274116482 |
14 | 1313370969 |
15 | 6292738363 |
16 | 30150320846 |
17 | 144458865867 |
18 | 692144008489 |
19 | 3316261176578 |
20 | 15889161874401 |
21 | 76129548195427 |
22 | 364758579102734 |
23 | 1747663347318243 |
[1,2,9,43,206,987,4729,22658,108561,520147, 2492174,11940723,57211441,274116482,1313370969, 6292738363,30150320846,144458865867,692144008489, 3316261176578,15889161874401,76129548195427, 364758579102734,1747663347318243] |