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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 15 |
| 3 | 36 |
| 4 | 69 |
| 5 | 114 |
| 6 | 167 |
| 7 | 252 |
| 8 | 369 |
| 9 | 510 |
| 10 | 679 |
| 11 | 884 |
| 12 | 1125 |
| 13 | 1386 |
| 14 | 1679 |
| 15 | 2056 |
| 16 | 2509 |
| 17 | 3014 |
| 18 | 3583 |
| 19 | 4216 |
| 20 | 4921 |
| 21 | 5674 |
| 22 | 6495 |
| 23 | 7420 |
| 24 | 8441 |
| 25 | 9526 |
| 26 | 10687 |
| 27 | 11948 |
| 28 | 13293 |
| 29 | 14682 |
| 30 | 16127 |
| 31 | 17760 |
| 32 | 19557 |
| 33 | 21462 |
| 34 | 23503 |
| 35 | 25664 |
| 36 | 27969 |
| 37 | 30378 |
| 38 | 32927 |
| 39 | 35636 |
| 40 | 38513 |
| 41 | 41510 |
| 42 | 44655 |
[1,6,15,36,69,114,167,252,369,510,679,884,1125, 1386,1679,2056,2509,3014,3583,4216,4921,5674,6495, 7420,8441,9526,10687,11948,13293,14682,16127, 17760,19557,21462,23503,25664,27969,30378,32927, 35636,38513,41510,44655] |