n | a(n) |
---|---|
1 | 0 |
2 | 39 |
3 | 159 |
4 | 15720 |
5 | 63480 |
6 | 6256719 |
7 | 25265079 |
8 | 2490158640 |
9 | 10055438160 |
10 | 991076882199 |
11 | 4002039122799 |
12 | 394446108956760 |
13 | 1592801515436040 |
14 | 156988560287908479 |
15 | 633931001104421319 |
16 | 62481052548478618080 |
17 | 252302945638044249120 |
18 | 24867301925734202087559 |
[0,39,159,15720,63480,6256719,25265079,2490158640, 10055438160,991076882199,4002039122799, 394446108956760,1592801515436040, 156988560287908479,633931001104421319, 62481052548478618080,252302945638044249120, 24867301925734202087559] |