n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 8 |
4 | 78 |
5 | 944 |
6 | 13760 |
7 | 235248 |
8 | 4620224 |
9 | 102551296 |
10 | 2539240416 |
11 | 69398978560 |
12 | 2075328010624 |
13 | 67408188246528 |
14 | 2363279141726464 |
15 | 88952164594807808 |
16 | 3577709564478865920 |
17 | 153136329382704201728 |
18 | 6950244396227548178432 |
[0,0,1,8,78,944,13760,235248,4620224,102551296, 2539240416,69398978560,2075328010624, 67408188246528,2363279141726464,88952164594807808, 3577709564478865920,153136329382704201728, 6950244396227548178432] |