The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 192 |
| 3 | 17745 |
| 4 | 1612127 |
| 5 | 146356224 |
| 6 | 13286470095 |
| 7 | 1206167003329 |
| 8 | 109497763028928 |
| 9 | 9940381426772625 |
| 10 | 902403667119137183 |
| 11 | 81921642989758089216 |
| 12 | 7436977302591050167695 |
| 13 | 675140651246077550931841 |
| 14 | 61290344237862763973468352 |
| 15 | 5564035123440571957929508305 |
| 16 | 505111975464406109413779799007 |
[1,192,17745,1612127,146356224,13286470095, 1206167003329,109497763028928,9940381426772625, 902403667119137183,81921642989758089216, 7436977302591050167695,675140651246077550931841, 61290344237862763973468352, 5564035123440571957929508305, 505111975464406109413779799007] |