n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 6 |
6 | 19 |
7 | 59 |
8 | 267 |
9 | 1380 |
10 | 9832 |
11 | 90842 |
12 | 1144061 |
13 | 19425052 |
14 | 445781050 |
15 | 13743625184 |
16 | 566756900370 |
17 | 31125101479652 |
[1,1,1,3,6,19,59,267,1380,9832,90842,1144061, 19425052,445781050,13743625184,566756900370, 31125101479652] |