n | a(n) |
---|---|
0 | 2 |
1 | 3 |
2 | 12 |
3 | 63 |
4 | 378 |
5 | 2457 |
6 | 16848 |
7 | 120042 |
8 | 880308 |
9 | 6602310 |
10 | 50417640 |
11 | 390736710 |
12 | 3065780340 |
13 | 24307258410 |
14 | 194458067280 |
15 | 1567818167445 |
16 | 12726994535730 |
17 | 103937122041795 |
18 | 853378475711580 |
19 | 7040372424620535 |
20 | 58334514375427290 |
[2,3,12,63,378,2457,16848,120042,880308,6602310, 50417640,390736710,3065780340,24307258410, 194458067280,1567818167445,12726994535730, 103937122041795,853378475711580,7040372424620535, 58334514375427290] |