n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 16 |
4 | 123 |
5 | 1221 |
6 | 14724 |
7 | 207908 |
8 | 3355803 |
9 | 60873595 |
10 | 1225319163 |
11 | 27097430328 |
12 | 653052022740 |
13 | 17036213760892 |
14 | 478306368143880 |
15 | 14381009543824236 |
16 | 461038595072589531 |
17 | 15699544671941958663 |
18 | 565927686301436324649 |
[1,1,3,16,123,1221,14724,207908,3355803,60873595, 1225319163,27097430328,653052022740, 17036213760892,478306368143880,14381009543824236, 461038595072589531,15699544671941958663, 565927686301436324649] |