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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 12 |
| 3 | 21 |
| 4 | 39 |
| 5 | 63 |
| 6 | 85 |
| 7 | 117 |
| 8 | 154 |
| 9 | 192 |
| 10 | 242 |
| 11 | 286 |
| 12 | 333 |
| 13 | 401 |
| 14 | 472 |
| 15 | 535 |
| 16 | 604 |
| 17 | 685 |
| 18 | 761 |
| 19 | 859 |
| 20 | 950 |
| 21 | 1040 |
| 22 | 1147 |
| 23 | 1256 |
| 24 | 1346 |
| 25 | 1477 |
| 26 | 1608 |
| 27 | 1724 |
| 28 | 1858 |
| 29 | 1986 |
| 30 | 2117 |
| 31 | 2275 |
| 32 | 2436 |
| 33 | 2566 |
| 34 | 2731 |
| 35 | 2899 |
| 36 | 3054 |
| 37 | 3228 |
| 38 | 3422 |
| 39 | 3592 |
| 40 | 3785 |
| 41 | 3982 |
| 42 | 4148 |
| 43 | 4369 |
| 44 | 4592 |
| 45 | 4792 |
| 46 | 4993 |
[1,4,12,21,39,63,85,117,154,192,242,286,333,401, 472,535,604,685,761,859,950,1040,1147,1256,1346, 1477,1608,1724,1858,1986,2117,2275,2436,2566,2731, 2899,3054,3228,3422,3592,3785,3982,4148,4369,4592, 4792,4993] |