n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 46 |
6 | 261 |
7 | 1731 |
8 | 13221 |
9 | 114178 |
10 | 1100260 |
11 | 11702761 |
12 | 136177584 |
13 | 1720789476 |
14 | 23465311033 |
15 | 343446825119 |
16 | 5370259447317 |
17 | 89341588987180 |
18 | 1575660751228445 |
19 | 29364586727439204 |
20 | 576613703011533457 |
[1,1,1,3,10,46,261,1731,13221,114178,1100260, 11702761,136177584,1720789476,23465311033, 343446825119,5370259447317,89341588987180, 1575660751228445,29364586727439204, 576613703011533457] |