n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 25 |
5 | 340 |
6 | 7026 |
7 | 204862 |
8 | 8007602 |
9 | 404077632 |
10 | 25569505628 |
11 | 1982619985192 |
12 | 184861494417920 |
13 | 20406183592852460 |
14 | 2631875641089358912 |
15 | 392163247878318070876 |
16 | 66855512799464487146588 |
17 | 12929525365915201064027856 |
18 | 2815456378791384288128303192 |
[0,1,3,25,340,7026,204862,8007602,404077632, 25569505628,1982619985192,184861494417920, 20406183592852460,2631875641089358912, 392163247878318070876,66855512799464487146588, 12929525365915201064027856, 2815456378791384288128303192] |