| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 304 |
| 3 | 1585 |
| 4 | 52012 |
| 5 | 1220365 |
| 6 | 31434011 |
| 7 | 831752031 |
| 8 | 21825406629 |
| 9 | 577067248097 |
| 10 | 15264615530025 |
| 11 | 403812868628480 |
| 12 | 10685809803693442 |
| 13 | 282758103332509395 |
| 14 | 7482442076882694554 |
| 15 | 198001573519763389397 |
| 16 | 5239581373201937179149 |
[1,304,1585,52012,1220365,31434011,831752031, 21825406629,577067248097,15264615530025, 403812868628480,10685809803693442, 282758103332509395,7482442076882694554, 198001573519763389397,5239581373201937179149] |