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| n | a(n) |
|---|---|
| 1 | 1693 |
| 2 | 1488 |
| 3 | 2971 |
| 4 | 7575 |
| 5 | 20187 |
| 6 | 53028 |
| 7 | 139425 |
| 8 | 374789 |
| 9 | 987296 |
| 10 | 2598603 |
| 11 | 6980876 |
| 12 | 18418693 |
| 13 | 48445791 |
| 14 | 130135991 |
| 15 | 343594820 |
| 16 | 903608172 |
| 17 | 2427038718 |
| 18 | 6410968020 |
| 19 | 16858590226 |
| 20 | 45274217595 |
| 21 | 119646835494 |
| 22 | 314596556735 |
| 23 | 844728863140 |
[1693,1488,2971,7575,20187,53028,139425,374789, 987296,2598603,6980876,18418693,48445791, 130135991,343594820,903608172,2427038718, 6410968020,16858590226,45274217595,119646835494, 314596556735,844728863140] |