n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 4 |
5 | 24 |
6 | 193 |
7 | 2420 |
8 | 47912 |
9 | 1600524 |
10 | 93253226 |
11 | 9694177479 |
12 | 1822463625183 |
13 | 625829508087155 |
14 | 395785845695978077 |
15 | 464137111800208818956 |
16 | 1015091598240432264958267 |
17 | 4160447480034069826186309689 |
18 | 32088552194861245127627790541334 |
[1,0,1,4,24,193,2420,47912,1600524,93253226, 9694177479,1822463625183,625829508087155, 395785845695978077,464137111800208818956, 1015091598240432264958267, 4160447480034069826186309689, 32088552194861245127627790541334] |