n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 36 |
4 | 350 |
5 | 4320 |
6 | 64827 |
7 | 1146880 |
8 | 23383404 |
9 | 540000000 |
10 | 13933327265 |
11 | 397303087104 |
12 | 12407264266410 |
13 | 421154777645056 |
14 | 15439814208984375 |
15 | 607985949695016960 |
16 | 25593429637028941208 |
17 | 1146928904801167933440 |
18 | 54515427164280400691709 |
19 | 2739404800000000000000000 |
[0,1,5,36,350,4320,64827,1146880,23383404, 540000000,13933327265,397303087104,12407264266410, 421154777645056,15439814208984375, 607985949695016960,25593429637028941208, 1146928904801167933440,54515427164280400691709, 2739404800000000000000000] |