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| n | a(n) |
|---|---|
| 1 | 61 |
| 2 | 105 |
| 3 | 185 |
| 4 | 327 |
| 5 | 601 |
| 6 | 1105 |
| 7 | 2021 |
| 8 | 3761 |
| 9 | 6969 |
| 10 | 12815 |
| 11 | 23897 |
| 12 | 44337 |
| 13 | 81597 |
| 14 | 152209 |
| 15 | 282457 |
| 16 | 519895 |
| 17 | 969849 |
| 18 | 1799825 |
| 19 | 3312853 |
| 20 | 6180081 |
| 21 | 11468921 |
| 22 | 21110367 |
| 23 | 39381145 |
| 24 | 73083121 |
| 25 | 134521133 |
| 26 | 250947665 |
| 27 | 465706137 |
| 28 | 857206439 |
| 29 | 1599109049 |
| 30 | 2967610449 |
[61,105,185,327,601,1105,2021,3761,6969,12815, 23897,44337,81597,152209,282457,519895,969849, 1799825,3312853,6180081,11468921,21110367, 39381145,73083121,134521133,250947665,465706137, 857206439,1599109049,2967610449] |