| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 15 |
| 10 | 16 |
| 11 | 174731235562130 |
| 12 | 174731235562131 |
| 13 | 174731235562132 |
| 14 | 174731235562143 |
| 15 | 174731235562147 |
| 16 | 174731235562170 |
| 17 | 174731235562171 |
| 18 | 174731235564710 |
| 19 | 174731235564711 |
| 20 | 174731236371006 |
| 21 | 25354527232277132536350 |
| 22 | 25354527232277132536351 |
[0,1,2,3,4,5,6,7,15,16,174731235562130, 174731235562131,174731235562132,174731235562143, 174731235562147,174731235562170,174731235562171, 174731235564710,174731235564711,174731236371006, 25354527232277132536350,25354527232277132536351] |