n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 6 |
7 | 42 |
8 | 336 |
9 | 3024 |
10 | 27216 |
11 | 299376 |
12 | 3592512 |
13 | 46702656 |
14 | 653837184 |
15 | 9880206336 |
16 | 158083301376 |
17 | 2687416123392 |
18 | 48373490221056 |
19 | 919096314200064 |
20 | 18375168222867456 |
21 | 385878532680216576 |
22 | 8489327718964764672 |
23 | 195254537536189587456 |
24 | 4686108900868550098944 |
[0,0,0,0,0,1,6,42,336,3024,27216,299376,3592512, 46702656,653837184,9880206336,158083301376, 2687416123392,48373490221056,919096314200064, 18375168222867456,385878532680216576, 8489327718964764672,195254537536189587456, 4686108900868550098944] |