n | a(n) |
---|---|
0 | 1 |
1 | 18 |
2 | 306 |
3 | 5202 |
4 | 88434 |
5 | 1503378 |
6 | 25557426 |
7 | 434476242 |
8 | 7386096114 |
9 | 125563633785 |
10 | 2134581771744 |
11 | 36287890075584 |
12 | 616894130535840 |
13 | 10487200206374784 |
14 | 178282403291884896 |
15 | 3030800852281773888 |
16 | 51523614426225577248 |
[1,18,306,5202,88434,1503378,25557426,434476242, 7386096114,125563633785,2134581771744, 36287890075584,616894130535840,10487200206374784, 178282403291884896,3030800852281773888, 51523614426225577248] |