n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 63 |
4 | 644 |
5 | 7610 |
6 | 107994 |
7 | 1713726 |
8 | 30671024 |
9 | 603160344 |
10 | 12974475240 |
11 | 301879678320 |
12 | 7561610279112 |
13 | 202437968475288 |
14 | 5769455216675136 |
15 | 174234738889383480 |
16 | 5556311629901103360 |
17 | 186482786151757707840 |
18 | 6568881383985687359424 |
19 | 242221409390815100812224 |
[1,1,8,63,644,7610,107994,1713726,30671024, 603160344,12974475240,301879678320,7561610279112, 202437968475288,5769455216675136, 174234738889383480,5556311629901103360, 186482786151757707840,6568881383985687359424, 242221409390815100812224] |