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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 20 |
| 3 | 113 |
| 4 | 243 |
| 5 | 1024 |
| 6 | 1636 |
| 7 | 3866 |
| 8 | 6599 |
| 9 | 12387 |
| 10 | 16807 |
| 11 | 32768 |
| 12 | 41744 |
| 13 | 66291 |
| 14 | 90598 |
| 15 | 133205 |
| 16 | 161051 |
| 17 | 248832 |
| 18 | 292932 |
| 19 | 401910 |
| 20 | 501113 |
| 21 | 661703 |
| 22 | 759375 |
| 23 | 1048576 |
| 24 | 1185856 |
| 25 | 1507979 |
| 26 | 1788296 |
| 27 | 2222649 |
| 28 | 2476099 |
| 29 | 3200000 |
| 30 | 3532100 |
| 31 | 4287258 |
| 32 | 4926235 |
| 33 | 5889323 |
[3,20,113,243,1024,1636,3866,6599,12387,16807, 32768,41744,66291,90598,133205,161051,248832, 292932,401910,501113,661703,759375,1048576, 1185856,1507979,1788296,2222649,2476099,3200000, 3532100,4287258,4926235,5889323] |