n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 17 |
3 | 102 |
4 | 645 |
5 | 4193 |
6 | 27764 |
7 | 186231 |
8 | 1261213 |
9 | 8604759 |
10 | 59053167 |
11 | 407217396 |
12 | 2819252544 |
13 | 19583729766 |
14 | 136426565999 |
15 | 952743556907 |
16 | 6667916884701 |
17 | 46755146944959 |
18 | 328398159653117 |
19 | 2310073990369926 |
20 | 16271915501598595 |
21 | 114757849228310355 |
[1,3,17,102,645,4193,27764,186231,1261213,8604759, 59053167,407217396,2819252544,19583729766, 136426565999,952743556907,6667916884701, 46755146944959,328398159653117,2310073990369926, 16271915501598595,114757849228310355] |