n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 35 |
4 | 466 |
5 | 8072 |
6 | 168330 |
7 | 4045603 |
8 | 109089538 |
9 | 3242538284 |
10 | 104946776716 |
11 | 3665946814257 |
12 | 137291732981170 |
13 | 5483948111154008 |
14 | 232660368810666229 |
15 | 10447887814670412307 |
16 | 495139557493903545618 |
17 | 24699919104193662112382 |
18 | 1293980412831022073519196 |
[1,1,4,35,466,8072,168330,4045603,109089538, 3242538284,104946776716,3665946814257, 137291732981170,5483948111154008, 232660368810666229,10447887814670412307, 495139557493903545618,24699919104193662112382, 1293980412831022073519196] |