n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 28 |
4 | 197 |
5 | 1676 |
6 | 16597 |
7 | 186796 |
8 | 2350105 |
9 | 32634928 |
10 | 495207881 |
11 | 8144456684 |
12 | 144204493765 |
13 | 2733218222944 |
14 | 55188182951917 |
15 | 1182163846918156 |
16 | 26765995313355953 |
17 | 638508459302742464 |
18 | 16002492517241163793 |
19 | 420279349847440766284 |
20 | 11540406000681962458141 |
21 | 330624627443307824367616 |
[1,1,5,28,197,1676,16597,186796,2350105,32634928, 495207881,8144456684,144204493765,2733218222944, 55188182951917,1182163846918156,26765995313355953, 638508459302742464,16002492517241163793, 420279349847440766284,11540406000681962458141, 330624627443307824367616] |