n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 22 |
4 | 197 |
5 | 2256 |
6 | 32887 |
7 | 574624 |
8 | 11690121 |
9 | 272279296 |
10 | 7147894571 |
11 | 208828168704 |
12 | 6721780173517 |
13 | 236392313927680 |
14 | 9019055052313503 |
15 | 371059593102831616 |
16 | 16376333449953390353 |
17 | 771800236449984086016 |
18 | 38687542995415388643667 |
19 | 2055303661966287413837824 |
[1,1,3,22,197,2256,32887,574624,11690121, 272279296,7147894571,208828168704,6721780173517, 236392313927680,9019055052313503, 371059593102831616,16376333449953390353, 771800236449984086016,38687542995415388643667, 2055303661966287413837824] |