n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 12 |
4 | 120 |
5 | 1160 |
6 | 11340 |
7 | 113988 |
8 | 1185968 |
9 | 12802896 |
10 | 143475300 |
11 | 1668342060 |
12 | 20111265768 |
13 | 251047344600 |
14 | 3241258872124 |
15 | 43230289541460 |
16 | 594927620980320 |
17 | 8438127851537312 |
18 | 123214473695309652 |
19 | 1850390947982126268 |
[0,0,1,12,120,1160,11340,113988,1185968,12802896, 143475300,1668342060,20111265768,251047344600, 3241258872124,43230289541460,594927620980320, 8438127851537312,123214473695309652, 1850390947982126268] |