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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 15 |
| 2 | 46 |
| 3 | 93 |
| 4 | 156 |
| 5 | 235 |
| 6 | 330 |
| 7 | 441 |
| 8 | 568 |
| 9 | 711 |
| 10 | 870 |
| 11 | 1045 |
| 12 | 1236 |
| 13 | 1443 |
| 14 | 1666 |
| 15 | 1905 |
| 16 | 2160 |
| 17 | 2431 |
| 18 | 2718 |
| 19 | 3021 |
| 20 | 3340 |
| 21 | 3675 |
| 22 | 4026 |
| 23 | 4393 |
| 24 | 4776 |
| 25 | 5175 |
| 26 | 5590 |
| 27 | 6021 |
| 28 | 6468 |
| 29 | 6931 |
| 30 | 7410 |
| 31 | 7905 |
| 32 | 8416 |
| 33 | 8943 |
| 34 | 9486 |
| 35 | 10045 |
| 36 | 10620 |
| 37 | 11211 |
| 38 | 11818 |
| 39 | 12441 |
| 40 | 13080 |
[0,15,46,93,156,235,330,441,568,711,870,1045,1236, 1443,1666,1905,2160,2431,2718,3021,3340,3675,4026, 4393,4776,5175,5590,6021,6468,6931,7410,7905,8416, 8943,9486,10045,10620,11211,11818,12441,13080] |