n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 52 |
4 | 1228 |
5 | 42652 |
6 | 1972324 |
7 | 114581476 |
8 | 8051020348 |
9 | 666126945340 |
10 | 63620722928308 |
11 | 6907454641512244 |
12 | 842227742687112604 |
13 | 114192665828161184332 |
14 | 17076069626235659815108 |
15 | 2796969496541969481342100 |
16 | 498871283058754285439126092 |
17 | 96403472225110465517090352700 |
18 | 20094942949266343527252229063204 |
19 | 4500802213556155723422379457382916 |
20 | 1079478060677848794106956676648220860 |
[1,4,52,1228,42652,1972324,114581476,8051020348, 666126945340,63620722928308,6907454641512244, 842227742687112604,114192665828161184332, 17076069626235659815108,2796969496541969481342100, 498871283058754285439126092, 96403472225110465517090352700, 20094942949266343527252229063204, 4500802213556155723422379457382916, 1079478060677848794106956676648220860] |