n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 10 |
4 | 88 |
5 | 1216 |
6 | 24176 |
7 | 654424 |
8 | 23136128 |
9 | 1035227008 |
10 | 57186502912 |
11 | 3822411268864 |
12 | 304059285928960 |
13 | 28385946491599360 |
14 | 3073391215118186496 |
15 | 381995951933025287680 |
16 | 54020316243835807039488 |
17 | 8624091617045072628121600 |
18 | 1543536018434416280510332928 |
[1,1,2,10,88,1216,24176,654424,23136128, 1035227008,57186502912,3822411268864, 304059285928960,28385946491599360, 3073391215118186496,381995951933025287680, 54020316243835807039488,8624091617045072628121600, 1543536018434416280510332928] |