n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 60 |
3 | 1368 |
4 | 15552 |
5 | 201240 |
6 | 2016432 |
7 | 21582624 |
8 | 201060768 |
9 | 1944012744 |
10 | 17257455960 |
11 | 156760071600 |
12 | 1346073913440 |
13 | 11734199738820 |
14 | 98420246759688 |
[1,6,60,1368,15552,201240,2016432,21582624, 201060768,1944012744,17257455960,156760071600, 1346073913440,11734199738820,98420246759688] |