n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 21 |
3 | 192 |
4 | 2154 |
5 | 28434 |
6 | 429213 |
7 | 7261788 |
8 | 135698268 |
9 | 2769463335 |
10 | 61186736415 |
11 | 1452889463034 |
12 | 36857766745749 |
13 | 993941679586098 |
14 | 28370018078000985 |
15 | 853903169641805925 |
16 | 27014392815958815969 |
17 | 895723118730738795837 |
18 | 31048284069527339602902 |
[1,3,21,192,2154,28434,429213,7261788,135698268, 2769463335,61186736415,1452889463034, 36857766745749,993941679586098,28370018078000985, 853903169641805925,27014392815958815969, 895723118730738795837,31048284069527339602902] |