| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 96 |
| 3 | 1432 |
| 4 | 19532 |
| 5 | 263468 |
| 6 | 3567928 |
| 7 | 48279880 |
| 8 | 653282566 |
| 9 | 8839456244 |
| 10 | 119606358743 |
| 11 | 1618388055066 |
| 12 | 21898377621170 |
| 13 | 296306504038927 |
| 14 | 4009317324360190 |
| 15 | 54249991153267601 |
| 16 | 734055526483841279 |
[3,96,1432,19532,263468,3567928,48279880, 653282566,8839456244,119606358743,1618388055066, 21898377621170,296306504038927,4009317324360190, 54249991153267601,734055526483841279] |