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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 9 |
| 3 | 23 |
| 4 | 47 |
| 5 | 84 |
| 6 | 136 |
| 7 | 206 |
| 8 | 296 |
| 9 | 409 |
| 10 | 548 |
| 11 | 715 |
| 12 | 913 |
| 13 | 1145 |
| 14 | 1413 |
| 15 | 1720 |
| 16 | 2068 |
| 17 | 2460 |
| 18 | 2899 |
| 19 | 3387 |
| 20 | 3927 |
| 21 | 4521 |
| 22 | 5172 |
| 23 | 5883 |
| 24 | 6656 |
| 25 | 7494 |
| 26 | 8400 |
| 27 | 9376 |
| 28 | 10425 |
| 29 | 11549 |
| 30 | 12751 |
| 31 | 14034 |
| 32 | 15400 |
| 33 | 16852 |
| 34 | 18393 |
| 35 | 20025 |
| 36 | 21751 |
| 37 | 23573 |
| 38 | 25494 |
| 39 | 27517 |
| 40 | 29644 |
[2,9,23,47,84,136,206,296,409,548,715,913,1145, 1413,1720,2068,2460,2899,3387,3927,4521,5172,5883, 6656,7494,8400,9376,10425,11549,12751,14034,15400, 16852,18393,20025,21751,23573,25494,27517,29644] |