n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 40 |
4 | 484 |
5 | 9717 |
6 | 338724 |
7 | 21624680 |
8 | 2504301849 |
9 | 520443847520 |
10 | 195145309791364 |
11 | 131850659243316222 |
12 | 160668896658179472676 |
13 | 352891729183598844656996 |
14 | 1397187513066371784602204416 |
15 | 9972288382286063615850619475640 |
[1,2,9,40,484,9717,338724,21624680,2504301849, 520443847520,195145309791364,131850659243316222, 160668896658179472676,352891729183598844656996, 1397187513066371784602204416, 9972288382286063615850619475640] |