n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 2 |
4 | 19 |
5 | 100 |
6 | 1118 |
7 | 10034 |
8 | 134993 |
9 | 1715140 |
10 | 27589661 |
11 | 449763360 |
12 | 8522965956 |
13 | 168431719308 |
14 | 3698624353289 |
15 | 85523954588806 |
16 | 2142927489388319 |
17 | 56618555339223572 |
18 | 1596938935380604858 |
19 | 47399670488829289678 |
20 | 1487559109670284821841 |
[1,0,1,2,19,100,1118,10034,134993,1715140, 27589661,449763360,8522965956,168431719308, 3698624353289,85523954588806,2142927489388319, 56618555339223572,1596938935380604858, 47399670488829289678,1487559109670284821841] |