n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 47 |
4 | 428 |
5 | 4241 |
6 | 44407 |
7 | 483358 |
8 | 5414618 |
9 | 62014112 |
10 | 722870120 |
11 | 8547768832 |
12 | 102284029963 |
13 | 1236274747490 |
14 | 15070955944288 |
15 | 185089043535730 |
16 | 2287843817573898 |
17 | 28440852786725695 |
18 | 355345599519983962 |
19 | 4459821165693379625 |
20 | 56200963128262312342 |
[1,1,6,47,428,4241,44407,483358,5414618,62014112, 722870120,8547768832,102284029963,1236274747490, 15070955944288,185089043535730,2287843817573898, 28440852786725695,355345599519983962, 4459821165693379625,56200963128262312342] |