n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 14 |
5 | 87 |
6 | 669 |
7 | 6098 |
8 | 64050 |
9 | 759817 |
10 | 10028799 |
11 | 145575337 |
12 | 2302441248 |
13 | 39377544316 |
14 | 723627151168 |
15 | 14212023123570 |
16 | 296941929433826 |
17 | 6573946153123597 |
18 | 153673571064191583 |
19 | 3781352342496043197 |
20 | 97672909528404096334 |
21 | 2641852466110908004319 |
[1,1,3,14,87,669,6098,64050,759817,10028799, 145575337,2302441248,39377544316,723627151168, 14212023123570,296941929433826,6573946153123597, 153673571064191583,3781352342496043197, 97672909528404096334,2641852466110908004319] |