n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 17 |
5 | 67 |
6 | 352 |
7 | 1969 |
8 | 13295 |
9 | 97619 |
10 | 848354 |
11 | 7647499 |
12 | 82862683 |
13 | 897904165 |
14 | 11226063188 |
15 | 146116260203 |
16 | 2089038231953 |
17 | 30230018309161 |
18 | 508450431515290 |
19 | 8318618236423861 |
20 | 154636109939564681 |
21 | 2896102013935844771 |
22 | 59056861862689101272 |
[1,1,2,5,17,67,352,1969,13295,97619,848354, 7647499,82862683,897904165,11226063188, 146116260203,2089038231953,30230018309161, 508450431515290,8318618236423861, 154636109939564681,2896102013935844771, 59056861862689101272] |