n | a(n) |
---|---|
1 | 0 |
2 | 27 |
3 | 378 |
4 | 4536 |
5 | 48600 |
6 | 489780 |
7 | 4738104 |
8 | 44535456 |
9 | 409752432 |
10 | 3708359550 |
11 | 33125746500 |
12 | 292779558720 |
13 | 2565087894720 |
14 | 22307854940280 |
15 | 192788833482000 |
16 | 1657111548654720 |
17 | 14176605442521312 |
18 | 120779466450505758 |
19 | 1025230099571720676 |
20 | 8674221270307971600 |
[0,27,378,4536,48600,489780,4738104,44535456, 409752432,3708359550,33125746500,292779558720, 2565087894720,22307854940280,192788833482000, 1657111548654720,14176605442521312, 120779466450505758,1025230099571720676, 8674221270307971600] |