n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 972 |
3 | 19640 |
4 | 260019 |
5 | 2365772 |
6 | 16266830 |
7 | 89700624 |
8 | 413977192 |
9 | 1650607040 |
10 | 5826331440 |
11 | 18558391936 |
12 | 54055214144 |
13 | 145576033920 |
14 | 365883104080 |
15 | 865023114560 |
16 | 1936764883296 |
17 | 4130528893504 |
18 | 8433028861040 |
[1,12,972,19640,260019,2365772,16266830,89700624, 413977192,1650607040,5826331440,18558391936, 54055214144,145576033920,365883104080, 865023114560,1936764883296,4130528893504, 8433028861040] |