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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 15 |
| 3 | 36 |
| 4 | 53 |
| 5 | 106 |
| 6 | 147 |
| 7 | 232 |
| 8 | 265 |
| 9 | 366 |
| 10 | 471 |
| 11 | 652 |
| 12 | 733 |
| 13 | 978 |
| 14 | 1147 |
| 15 | 1488 |
| 16 | 1553 |
| 17 | 1750 |
| 18 | 1951 |
| 19 | 2292 |
| 20 | 2501 |
| 21 | 3130 |
| 22 | 3491 |
| 23 | 4280 |
| 24 | 4441 |
| 25 | 4926 |
| 26 | 5415 |
| 27 | 6236 |
| 28 | 6573 |
| 29 | 7586 |
| 30 | 8267 |
| 31 | 9632 |
| 32 | 9761 |
| 33 | 10150 |
| 34 | 10543 |
| 35 | 11204 |
| 36 | 11605 |
| 37 | 12810 |
| 38 | 13491 |
| 39 | 14984 |
| 40 | 15401 |
| 41 | 16654 |
| 42 | 17911 |
| 43 | 20012 |
[1,6,15,36,53,106,147,232,265,366,471,652,733,978, 1147,1488,1553,1750,1951,2292,2501,3130,3491,4280, 4441,4926,5415,6236,6573,7586,8267,9632,9761, 10150,10543,11204,11605,12810,13491,14984,15401, 16654,17911,20012] |