The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 318 |
| 4 | 112540 |
| 5 | 139620591 |
| 6 | 491579082022 |
| 7 | 4303961368154069 |
| 8 | 85434752794871493882 |
| 9 | 3588523098005804563697043 |
| 10 | 302194941264401427042462944147 |
| 11 | 48844693123353655726678707534158535 |
| 12 | 14615188708581196626576773497618986350642 |
[1,1,5,318,112540,139620591,491579082022, 4303961368154069,85434752794871493882, 3588523098005804563697043, 302194941264401427042462944147, 48844693123353655726678707534158535, 14615188708581196626576773497618986350642] |