n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 12 |
4 | 81 |
5 | 765 |
6 | 7938 |
7 | 85239 |
8 | 963819 |
9 | 11801862 |
10 | 158533443 |
11 | 2320621569 |
12 | 36425289816 |
13 | 604576791405 |
14 | 10532817901791 |
15 | 192197187209484 |
16 | 3673078679995677 |
17 | 73486862051182425 |
18 | 1536507360834633666 |
19 | 33482575797899354235 |
20 | 758209049155176114807 |
[0,1,3,12,81,765,7938,85239,963819,11801862, 158533443,2320621569,36425289816,604576791405, 10532817901791,192197187209484,3673078679995677, 73486862051182425,1536507360834633666, 33482575797899354235,758209049155176114807] |