The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 25 |
| 3 | 1000 |
| 4 | 83521 |
| 5 | 11881376 |
| 6 | 2565726409 |
| 7 | 781250000000 |
| 8 | 318644812890625 |
| 9 | 167619550409708032 |
| 10 | 110462212541120451001 |
| 11 | 89116503268220597577728 |
| 12 | 86380562306022715087890625 |
| 13 | 99045780329059370000000000000 |
| 14 | 132595005683061140853836321918569 |
[1,2,25,1000,83521,11881376,2565726409, 781250000000,318644812890625,167619550409708032, 110462212541120451001,89116503268220597577728, 86380562306022715087890625, 99045780329059370000000000000, 132595005683061140853836321918569] |