n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 18 |
4 | 161 |
5 | 1900 |
6 | 27755 |
7 | 482552 |
8 | 9722113 |
9 | 222612624 |
10 | 5707904499 |
11 | 161981127968 |
12 | 5039646554593 |
13 | 170561613679808 |
14 | 6237995487261915 |
15 | 245159013138710400 |
16 | 10303367499652761601 |
17 | 461102348510408544512 |
18 | 21891769059478538933603 |
19 | 1098983344602124698522112 |
[1,1,3,18,161,1900,27755,482552,9722113,222612624, 5707904499,161981127968,5039646554593, 170561613679808,6237995487261915, 245159013138710400,10303367499652761601, 461102348510408544512,21891769059478538933603, 1098983344602124698522112] |